WLS Codebooks and Flowcharts

Note: Codebooks contain frequency data from the private data release. For some variables, these differ from the frequencies in the public release. Variables that differ between the public and private versions include "(not available on public release)" as part of the variable description, or a note indicating the difference between the public and private versions.

Status and Descriptive Variables

Status and Descriptive Variables Module


OVERVIEW

This module includes participation status variables for each wave and a few
measures, such as sex and birthdate, that do not change across waves.  This
module also contains information on the mortality status of Graduates and
Siblings.

Similar variables for spouses are in the summary modules for the spouse
codebook, since the spouse may change. 

For graduate spouse
see 
grad spouse summary.

For sibling spouses see
sib spouse summary.


BRIEF VARIABLE DESCRIPTIONS

    IDPRIV, IDPUB        Private, Public ID

    CMBRDX, BRDXDY:      Graduate's birthdate info

    SEXRSP:              Graduate's sex

    GROUP91:             Replicate Number

    LIVGRAD-DEATMN:      Graduate death info

    INAFROA:             Graduate an African-American?

    TWINR:               Graduate a twin?

    RS64FU-RS64:         1964 postcard response status

    STAT75:              Grad's 1975 response status

    RSP75, XSMPL:        Combined response status up to 1977

    STAT92P, STAT92M:    Grad's 1993 response status

    STAT04P, STAT04M:    Grad's 2004 response status

    STAT04GS:            Grad spouse 2004 response status

    STATMDSQ:            Grad Medicare Part D SAQ response status
    
    STAT11P, STAT11M:    Grad 2011 response status

    STATK08, STATK11:    Grad 2008 and 2011 Oragene Kit mailback status

    STATC08, STATC11:    Grad 2008 and 2011 Saliva Consent mailback status

    STATW11              Grad 2011 Medicare Waiver status

    STATS11              Grad 2011 Social Security Waiver status

    STATKDNA,STATCDNA:   Grad Oragene kit and consent cumulative status

    IA008RE:             Num. of quest. sent to Grad in 2004

    DUPID:               ID that links to graduate's duplicate

    XDUPRTP:             Respondent type of the selected sibling's duplicate

    XDUPID:              ID that links to selected sibling's duplicate

    XSIBSTAT:            Selected sibling status

    XCMBRDX, XBRDXDY:    Selected Sibling's birthdate info

    SSBSEX:              Selected Sibiling's sex

    XLIVSIB, XDEATMN:    Sibling's death info

    XSTAT77:             Sibling's 1977 response status

    XSTAT93P,XSTAT93M:   Sibling's 1994 response status

    XSTAT05P,XSTAT05M:   Sibling's 2005 response status

    XSTAT05S:            Sibling spouse 2005 response status
    
    XSTAT11P, XSTAT11M:  Sibling's 2011 response status

    XSTATK08, XSTATK11:  Sibling 2008 and 2011 Oragene Kit mailback status

    XSTATC08, XSTATC11:  Sibling 2008 and 2011 Saliva Consent mailback status

    XSTATW05, XSTATW11   Sibling 2005 and 2011 Medicare Waiver status

    XSTATS11             Sibling 2011 Social Security Waiver status

    XSTATKDNA,XSTATCDNA: Sibling Oragene kit and consent cumulative status

    XSMTWIN:             1975 Grad and 1977 Sib twins?

    RINLIFE-RLIFEWV:     Grad's 1997 Life History study details

idpriv: Protected data release ID for data version 13.06, limited access.

Data source: Graduate Respondent      Collected in: 1957-      Mode: not applicable
Source variables: Not Applicable

Frequencies
Value Label Male Female Total
800004 - 833954 Unique identifier 4991 5326 10317

idpub: Public data release ID for data version 13.06, on downloadable data.

Frequencies
Value Label Male Female Total
900018 - 933957 Unique identifier 4991 5326 10317

cmbrdx: Graduate's century month of birthdate.

Data source: Graduate Respondent      Collected in: 1975, 1993      Mode: phone
Source variables: QE; z1, z1b
Revisions: Updated 11/95 with 1993 survey data for 1975 NRs     
*NOT AVAILABLE ON PUBLIC RELEASE*

Frequencies
Value Label Male Female Total
-3 Not ascertained or nonrespondent in both 1975 and 1992/93 interviews 337 251 588
139 - 499 Century month 4654 5075 9729
Note: Century Month= Last 2 digits of year times 12 plus month. See Appendix A - COR607 for more details; including converting century month back to year and month.

brdxdy: Graduate's year of birth.

Data source: Graduate Respondent      Collected in: 1975, 1993      Mode: phone
Source variables: QE; zb2, zb3, zb4
Revisions: Updated 11/95 with 1993 survey data for 1975 NRs; 03/2002     

Frequencies
Value Label Male Female Total
-3 Not ascertained or nonrespondent in both 1975 and 1992/93 interviews 336 250 586
11 1911 0 1 1
30 1930 1 1 2
34 1934 0 1 1
35 1935 0 1 1
36 1936 13 4 17
37 1937 108 52 160
38 1938 900 687 1587
39 1939 3463 4069 7532
40 1940 168 260 428
41 1941 2 0 2
Note: In the public data, BRDXDY is bottom coded at 37 and top-coded at 40.

sexrsp: Sex of graduate respondent

Data source: Graduate Respondent      Collected in: 1957      Mode: SAQ
Source variables: v

Frequencies
Value Label Male Female Total
1 MALE 4991 0 4991
2 FEMALE 0 5326 5326

group91: Group to which graduate was randomly assigned in 1991. Those individuals not known to be deceased by 1991 were randomly divided into 10 groups. (Added 3/96)

Data source: Graduate Respondent      Collected in: 1991      Mode: not applicable
Source variables: Not Applicable

Frequencies
Value Label Male Female Total
00 - 09 Group number 4873 5270 10143
99 Not assigned to a group, deceased prior to 1991 (STAT75=6-8) 118 56 174
Note: group91 is also referred to as replicate. Selected siblings, graduate spouses, and sibling spouses all share the same group number with corresponding graduate.

One case was falsely reported as deceased during the 1975 fielding and therefore was assigned a group number of 99. Since release 13.03, the 1975 response status, STAT75, for this case has been changed from 7, Deceased after 1964, to 10, Not found, but the value in group91 remains 99.

livgrad: Is the graduate alive as of current release as far as we know?

Data source: Graduate Respondent      Collected in: 1957-      Mode: not applicable
Source variables: trace
Revisions: Updated 11/2014     

Frequencies
Value Label Male Female Total
1 Yes, Respondent is not known to be deceased 3648 4323 7971
2 No, Respondent is deceased 1343 1003 2346
Note: We learned of some respondent deaths after they had completed an interview. They are coded 2 for LIVGRAD but coded "complete" in the response status for the survey (e.g. stat04p, statkdna, statcdna and statkdna).

Anytime we learn of a respondent's death, the information is added to LIVGRAD, DEATYR and DEATMN and becomes available with the next data release.

Variables DEATC and DEATST were removed with the 03/2002 update. Updated information from the NDI search is available in the National Death Index module.

deatyr: Year of graduate's death. (Added 3/97)

Data source: Graduate Respondent      Collected in: 1997-      Mode: not applicable
Source variables: trace
Revisions: Updated 11/2014     

Frequencies
Value Label Male Female Total
-2 3648 4323 7971
1957 - 2013 Year of death 1303 962 2265
2014 5 4 9
9971 DK, last contact in 1975 graduate interview 3 4 7
9973 DK, last contact in 1992-93 graduate interview 3 3 6
9975 DK, last contact in 2003-05 graduate interview 3 3 6
9977 DK, last contact for 2008-10 biomarker collection 1 3 4
9993 DK, before 1964 13 5 18
9994 DK, after 1964, before 1975 10 10 20
9995 DK, before 1975 interview 2 6 8
9996 DK, before 1992-93 graduate interview 0 3 3
Note: Anytime we learn of a respondent's death, the information is added to LIVGRAD, DEATYR and DEATMN and becomes available with the next data release.

DEATYR and DEATMN are also updated periodically with Social Security Administration's death index. On rare occasions, the date of birth (cmbrdx and brdxdy) might also be updated.

deatmn: Month of graduate's death. (Added 4/2007)

Data source: Graduate Respondent      Collected in: 2007      Mode: not applicable
Source variables: various
Revisions: Updated 11/2014     
*NOT AVAILABLE ON PUBLIC RELEASE*

Frequencies
Value Label Male Female Total
-4 Not ascertained 55 50 105
-2 3648 4323 7971
1 - 12 Month of death 1288 953 2241

inafroa: Was the graduate identified as African American? (Added 9/05)

Data source: Graduate Respondent      Collected in: 2005      Mode: phone
Source variables: Not Applicable
*NOT AVAILABLE ON PUBLIC RELEASE*

Frequencies
Value Label Male Female Total
1 YES 15 27 42
2 NO 4976 5299 10275

twinr: Is the graduate a twin?

Data source: Graduate Respondent      Collected in: 1975, 1993      Mode: phone
Source variables: Q78b, 78c, 78, 78a, z15d, z15c, z15b
Revisions: Updated 11/95 with 1993 survey data for 1975 NRs; 04/2003     

Frequencies
Value Label Male Female Total
-3 Don't know, not ascertained or nonrespondent 460 322 782
-2 355 386 741
1 Yes-- twin deceased 10 13 23
2 Yes-- identical twin 24 19 43
3 Yes-- fraternal twin of same sex 18 32 50
4 Yes--fraternal twin of different sex 22 30 52
5 Not a twin 4102 4524 8626
Note: This variable is identical to twinr75 in the 1975 graduates Siblings module.

rs64fu: 1964 Graduate parents's follow-up response.

Data source: Graduate Respondent      Collected in: 1964      Mode: mail
Source variables: Not Applicable

Frequencies
Value Label Male Female Total
1 Response to the First Wave (RSPW64 = 0 or 4) 2585 2669 5254
2 Response to the Second Wave (RSPW64 = 1 or 5) 1025 1086 2111
3 Response to the Third Wave (RSPW64 = 2 or 6) 336 404 740
4 Response to the Fourth Wave (RSPW64 = 3 or 7) 250 258 508
5 Response to the Telephone Interview (RSPW64 = 8) 182 193 375
6 No response at all to the 1964 questionnaire 184 209 393
7 Could not be contacted for the 1964 questionnaire 429 507 936

rspw64: 1964 Graduate parents's wave response.

Data source: Graduate Respondent      Collected in: 1964      Mode: mail
Source variables: Not Applicable

Frequencies
Value Label Male Female Total
-3 Nonrespondent 613 716 1329
0 First wave 2380 2449 4829
1 Second wave 928 981 1909
2 Third wave 313 348 661
3 Fourth wave 214 234 448
4 First wave; Tax office 205 220 425
5 Second wave; Tax office 97 105 202
6 Third wave; Tax office 23 56 79
7 Fourth wave; Tax office 36 24 60
8 Telephone interview 182 193 375
Note: Codes 0-3 the respondents' parents were traced through the addresses from the 1957 files. Codes 4-7 the addresses from the 1957 file were not successful in tracing the respondents' parents and a more recent address was copied from the Wisconsin State Tax Records.

rs64: Graduate parents's response status in 1964 by sub-sample

Data source: Graduate Respondent      Collected in: 1964      Mode: mail
Source variables: Not Applicable

Frequencies
Value Label Male Female Total
1 1964 Respondent; In top IQ Sample; 1/3 Sample 551 513 1064
3 1964 Respondent; Not in Top IQ Sample; In 1/3 Sample 3827 4097 7924
5 1964 Nonrespondent; In Top IQ Sample; In 1/3 sample 55 63 118
7 1964 Nonrespondent; Not in Top IQ Sample; In 1/3 Sample 558 653 1211

stat75: 1975 Status Code (1975) Coversheet LIV64 was used for analyses prior to 1975.

Data source: Graduate Respondent      Collected in: 1975      Mode: not applicable
Source variables: trace

Frequencies
Value Label Male Female Total
1 Interviewed 4330 4808 9138
2 Refused--Completed less than Q28 of 1975 Questionnaire 226 161 387
3 Unpublished phone 15 35 50
4 No phone 68 68 136
5 Handicapped 10 5 15
6 Deceased prior to 1964 interview 56 15 71
7 Deceased after 1964 interview 56 36 92
8 Deceased--date unknown 5 6 11
9 Out of U.S.A. 76 51 127
10 Not found 149 141 290

rsp75: Combined Response Status for 1964 and 1975. (1975 Coversheet)

Data source: Graduate Respondent      Collected in: 1964,1975      Mode: not applicable
Source variables: trace

Frequencies
Value Label Male Female Total
1 Response in 1964 and 1975 3886 4264 8150
2 Response in 1964; Nonresponse in 1975 389 300 689
3 Response in 1964; Deceased in 1975 51 32 83
4 Deceased in 1964 (LIV64 = 1 OR 2) OR (LIV64 = 9 AND STAT75 = 6) 56 15 71
5 Nonresponse in 1964; Response in 1975 444 545 989
6 Nonresponse in 1964 and 1975 154 162 316
7 Nonresponse in 1964; Deceased in 1975 11 8 19

xsmpl: Combined Sample (Graduate and Sibling) Response Code

Data source: Graduate Respondent      Collected in: 1957-      Mode: not applicable
Source variables: trace
Revisions: Updated codebook error in 3/96 release; Updated 3/97     

Frequencies
Value Label Male Female Total
1 Student in Sewell's 1/3 sample, responded to 1964 postcard, in Top 10% IQ Sample, responded in 1975; sibling responded in 1977 111 127 238
2 Student in Sewell's 1/3 sample, responded to 1964 postcard, in Top 10% IQ Sample, responded in 1975; sibling DID NOT respond in 1977 317 346 663
3 Student in Sewell's 1/3 sample, responded to 1964 postcard, NOT IN Top 10% IQ Sample, responded in 1975; sibling responded in 1977 835 841 1676
4 Student in Sewell's 1/3 sample, responded to 1964 postcard; NOT IN Top 10% IQ Sample, responded in 1975; sibling DID NOT respond in 1977 2526 2384 4910
5 Student in Sewell's 1/3 sample, DID NOT respond to 1964 postcard, in Top 10% IQ Sample, responded in 1975; sibling responded in 1977 8 16 24
6 Student in Sewell's 1/3 sample, DID NOT respond to 1964 postcard, in Top 10% IQ Sample, responded in 1975; sibling DID NOT respond in 1977 38 25 63
7 Student in Sewell's 1/3 sample, DID NOT respond to 1964 postcard, NOT IN Top 10% IQ Sample, responded in 1975; sibling responded in 1977 90 105 195
8 Student in Sewell's 1/3 sample, DID NOT respond to 1964 postcard, NOT IN Top 10% IQ Sample, responded in 1975; sibling DID NOT respond in 1977 325 302 627
9 Student in Sewell's 1/3 sample, responded to 1964 postcard, in Top 10% IQ Sample, DID NOT respond in 1975; sibling DID NOT respond in 1977 19 13 32
10 Student in Sewell's 1/3 sample, responded to 1964 postcard, NOT IN Top 10% IQ Sample, DID NOT respond in 1975; sibling DID NOT respond in 1977 109 131 240
11 Student in Sewell's 1/3 sample, DID NOT respond to 1964 postcard, in Top 10% IQ Sample, DID NOT respond in 1975; sibling DID NOT respond in 1977 6 4 10
12 Student in Sewell's 1/3 sample, DID NOT respond to 1964 postcard, NOT IN Top 10% IQ Sample, DID NOT respond in 1975; sibling DID NOT respond in 1977 53 47 100
Note: See Appendix A - COR700 for Background variables for the 1977 sibling study.

stat92p: Outcome of 1992-1993 primary respondent phone interview. (Added 11/95)

Data source: Graduate Respondent      Collected in: 1992      Mode: not applicable
Source variables: trace

Frequencies
Value Label Male Female Total
1 PHONE INTERVIEW COMPLETE 3980 4513 8493
2 SENT TO BE INTERVIEWED, RESPONDENT UNABLE TO BE INTERVIEWED, CAN'T RETRACE, OUT OF COUNTRY, UNLISTED PHONE NUMBER 150 111 261
3 SENT TO BE INTERVIEWED, REFUSED 313 270 583
4 SENT TO BE INTERVIEWED, NEVER STARTED 55 24 79
5 SENT TO BE INTERVIEWED, DECEASED 14 21 35
6 NOT SENT TO BE INTERVIEWED, DECEASED 335 217 552
7 NOT SENT, UNABLE TO LOCATE OR RESPONDENT UNABLE TO BE INTERVIEWED 139 167 306
8 NOT SENT, RESPONDENT REFUSED TO PARTICIPATE DURING TRACING 4 1 5
9 INTERVIEWED, RESPONSES UNREASONABLE, DATA DELETED FROM ANALYSIS FILE 1 2 3

stat92m: Outcome of 1992-1993 primary respondent mail interview. (Added 11/95)

Data source: Graduate Respondent      Collected in: 1992      Mode: not applicable
Source variables: trace

Frequencies
Value Label Male Female Total
1 MAIL INTERVIEW COMPLETED 3192 3683 6875
2 SENT MAIL QUESTIONNAIRE, BUT DID NOT RETURN 694 756 1450
3 NO MAIL QUESTIONNAIRE SENT, NO PHONE INTERVIEW COMPLETED 1010 811 1821
4 NO MAIL QUESTIONNAIRE SENT, PHONE INTERVIEW COMPLETED BUT SURVEY CENTER DID NOT SEND MAIL QUESTIONNAIRE 94 74 168
5 MAIL INTERVIEW COMPLETED, BUT NOT KEPT BECAUSE OF UNREASONABLE RESPONSES (STAT92P=9) 1 2 3

stat04p: Outcome of 2004 graduate telephone interview (Added 9/05)

Data source: Graduate Respondent      Collected in: 2004      Mode: not applicable
Source variables: trace

Frequencies
Value Label Male Female Total
1 COMPLETE INTERVIEW 3271 3792 7063
2 USEABLE PARTIAL, OUT OF FIELD BEFORE COMPLETION 19 25 44
3 USEABLE PARTIAL, REFUSED TO COMPLETE 80 78 158
4 UNUSABLE PARTIAL, OUT OF FIELD BEFORE COMPLETION 17 21 38
5 UNUSABLE PARTIAL, REFUSED TO COMPLETE 92 91 183
6 REFUSAL FOR ENTIRE FIELD PERIOD 347 426 773
7 DECEASED 769 518 1287
8 FIELDED - UNABLE TO PROCEED WITH THE INTERVIEW DUE TO ILLNESS OR TO PHYSICAL OR MENTAL DISABILITY. 21 18 39
9 NONFIELDED-PERMANENT HANDICAP 3 0 3
10 NONFIELDED-NON RESPONDENT IN BOTH 75 & 93 224 192 416
11 NONFIELDED-REQUEST NO FURTHER CONTACT 9 15 24
13 FIELDED - NONCONTACT 133 146 279
14 COMPLTD INTERVIEW, LATER REQUEST TO DELETE 2 1 3
15 NONFIELDED-ERROR 4 3 7
Note: Codes 9,11 and 14 are coded 19 on public release.

stat04m: Outcome of 2004 graduate respondent mail interview

Data source: Graduate Respondent      Collected in: 2004      Mode: not applicable
Source variables: trace

Frequencies
Value Label Male Female Total
1 Mail returned, entire phone interview completed 2892 3387 6279
2 Mail returned, partial useable phone completed 42 57 99
3 Mail returned, no ueseable phone completed 212 256 468
4 Mail questionnaire sent, not returned 762 821 1583
5 Mail questionniare not sent 1083 805 1888

stat04gs: Outcome of 2004 graduate spouse telephone interview.

Data source: Graduate Spouse Respondent      Collected in: 2004      Mode: not applicable
Source variables: trace

Frequencies
Value Label Male Female Total
1 Complete interview 2069 1788 3857
2 Useable partial, out of field before completion 3 2 5
3 useable partial, refused to complete 9 19 28
4 unusable partial, out of field before completion 2 0 2
5 unusable partial, refused to complete 9 14 23
6 refusal for entire field period 492 685 1177
7 deceased 6 16 22
8 fielded - unable 18 68 86
13 fielded - noncontact 53 56 109
15 nonfielded - divorced according to spouse fielding attempt 12 2 14
16 nonfielded - spouse also grad 75 81 156
17 nonfielded - spouse also sib 20 10 30
18 grad did not compelte the entire tel interv in 2004 1715 1533 3248
19 grad not married in 2004 495 1039 1534
20 nonfielded - out of field before retrace complete 13 13 26
Note: Codes 11, 15, 16 and 17 are collapsed into code 25 on public release.
Note: Frequencies are displayed for the graduate's gender.

statmdsq: Status code for return of Medicare Part D SAQ

Data source: Graduate Respondent      Collected in: 2004      Mode: not applicable
Source variables: trace
Revisions: Updated 5/2009     

Frequencies
Value Label Male Female Total
1 Complete 2619 2933 5552
6 Refusal, including blank questionnaire 53 72 125
7 Deceased 35 32 67
8 Unable 1 2 3
10 No further contact request 67 106 173
13 Sent to R, not returned by R or post office, address assumed correct 1046 1240 2286
20 Sent to R, invalid contact, could not relocate 159 176 335
22 Not sent to R, attempts to locate failed or not in sample frame 124 168 292
23 Not sent to R, known to be decased 878 583 1461
24 Not sent to R, no further contact request prior to fielding 9 14 23
Note: On public release, codes 8 and 13 are collapsed into code 13.

If the Medicare Part D SAQ was not returned (codes 13 or 20) and later we learned that the respondent was deceased prior to 2006 (from source such as Social Security Death Index), the case was assigned code 7. Code 7 also includes those who were reported as deceased during fielding period, mostly from information provided in the returned mail. Prior to release 13.02, non-contact cases (codes 13 and 20) were recoded to 7 if the respondents were found to be deceased from the latest Death Index search. In release 13.02, we do not recode non-contact cases (codes 13 and 20) that might have been deceased during fielding period (2006-2008) to code 7, unless the deaths were reported by informants. Instead, see DEATYR for respondent's year of death.

Some of the deaths reported from the returned mail cannot be verified. We have discovered some cases of false report of death. The status of such cases have been changed to refusal (code 6).

stat11p: Outcome of 2011 Graduate in-person interview.

Data source: Graduate Respondent      Collected in: 2011      Mode: not applicable
Source variables: trace
Revisions: Updated 8/2013     

Frequencies
Value Label Male Female Total
1 In-Person Complete 2714 3108 5822
2 Telephone Complete 41 65 106
3 In-Person Usable Partial 1 1 2
4 In-Person Usable Breakoff 4 0 4
5 Telephone Usable Partial 3 0 3
6 Proxy In-Person Complete 2 2 4
7 Proxy Telephone Complete 12 14 26
8 Proxy Telephone Usable Refused to Complete 0 1 1
9 Lost Data; Complete Interview; Malfunction 1 0 1
10 Refused 454 634 1088
11 Deceased 155 145 300
12 Physically or Mentally Unable 11 10 21
13 Unusable Partial 2 2 4
14 Unusable Breakoff 2 1 3
15 Fielded but no contact with R or unavailable 49 55 104
16 Destroy Data per Respondent 1 1 2
17 Not Fielded 1539 1287 2826
Note: While the majority of completed interviews were administered in-person, starting in the fall of 2012 we fielded a telephone-version of the interview to retain participants who chose not to be interviewed in-person and to include a few remaining participants where interviewer travel was cost-prohibitive. Code 17 includes participants who were known to be deceased, participants who asked us not to contact them again, and participants who did not participate in either the 1993 or 2004 wave.

stat11m: Outcome of 2011 Graduate SAQ.

Data source: Graduate Respondent      Collected in: 2011      Mode: not applicable
Source variables: trace
Revisions: Updated 8/2013     

Frequencies
Value Label Male Female Total
1 Returned Completed 2395 2782 5177
2 Returned Mail Only SAQ 70 117 187
3 Proxy Returned Completed 13 14 27
4 Refused or Returned Blank 258 398 656
5 Deceased 166 146 312
6 Nothing Returned 547 580 1127
7 Physically or Mentally Unable 2 1 3
8 Destroy Data per Respondent 1 1 2
9 Not Fielded 1539 1287 2826
Note: At the end of the in-person interview, Participants were handed a self-administered-questionnare (SAQ) to complete at a later time and mail back to the survey center. Participants who completed the telephone version of the interview instead of the in-person version were mailed a SAQ. Additionally, participants who declined the in-person interview and the alternate telephone interview were mailed a modified version of the self-administered-questionnare. We refer to this instrument as Mail Only Self-Administered Questionnaire or MOSAQ. Participants who started the in-person or telephone interview but did not finish the interview were also mailed the MOSAQ.

statk08: Status code for return of Oragene saliva kit from 2008 graduate biomarker collection (Added 7/2014)

Data source: Graduate Respondent      Collected in: 2008      Mode: not applicable
Source variables: trace

Frequencies
Value Label Male Female Total
1 Completed saliva kit (with or without consent) 2239 2378 4617
6 Refused 719 971 1690
7 Deceased 33 31 64
8 Unable 4 6 10
10 No further contact request during fielding period 83 122 205
13 Mail not returned, address assumed correct 856 985 1841
17 DNA data and material destroyed per respondent 1 0 1
20 Mail undelivered or returned to sender with forwarding info 45 68 113
22 Not fielded, unable to locate or not in sample frame 124 168 292
23 Not fielded, known deceased prior to fielding 878 583 1461
24 Not fielded, no further contact request prior to fielding 9 14 23
Note: On public release, codes 8 and 13 are collapsed into code 13; codes 10 and 17 are collapsed into 10.

If the Oragene kit was not returned (codes 13 or 20) and later we learned that the respondent was deceased prior to 2006 (from source such as Social Security Death Index), the case was assigned code 7. Code 7 also includes those who were reported as deceased during fielding period, mostly from information provided in the returned mail. In this measure, we do not attempt to recode non-contact case (codes 13 and 20) that might have been deceased during fielding period (2006-2008) to code 7, unless the deaths were reported by informants. See DEATYR for respondent's year of death.

Some of the deaths reported from the returned mail cannot be verified. We have discovered some cases of false report of death. The status of such cases have been changed to refusal (code 6).

This measure is based on the same information used to construct the STATKDNA released in versions prior to 13.02. In release 13.02, STATKDNA has been updated to include cumulative status from all waves of biomarker collection.

statk11: Status code for return of Oragene saliva kit from 2011 graduate biomarker collection (Added 7/2014)

Data source: Graduate Respondent      Collected in: 2011      Mode: not applicable
Source variables: trace

Frequencies
Value Label Male Female Total
1 Completed saliva kit (with or without consent) 794 1033 1827
5 Refused by someone other than respondent 0 1 1
6 Refused 142 207 349
7 Deceased 21 7 28
8 Unable 1 2 3
10 No further contact request during fielding period 26 43 69
13 Mail not returned, address assumed correct 341 446 787
16 All data destroyed per respondent 1 1 2
22 Not fielded, unable to locate or not in sample frame 369 378 747
23 Not fielded, known deceased prior to fielding 1020 717 1737
24 Not fielded, no further contact request prior to fielding 150 192 342
25 Not eligible for request (already donated saliva or CAPI and Mail-Only SAQ non-respondent) 2126 2299 4425
Note: On public release, codes 5, 8 and 13 are collapsed into code 13; codes 10 and 16 are collapsed into 10.

If the Oragene kit was not returned (codes 13 or 20) and later we learned that the respondent was deceased prior to 2009 (from source such as Social Security Death Index), the case was assigned code 7. Code 7 also includes those who were reported as deceased during fielding period, mostly from information provided in the returned mail. In this measure, we do not attempt to recode non-contact cases (codes 13 and 20) that might have been deceased during fielding period (2009-2013) to code 7, unless the deaths were reported by informants. See DEATYR for respondent's year of death. See STATKDNA for cumulative return status since the start of biomarker collection.

Some of the respondents who had donated saliva in 2008 might be asked to donate again if the amount of saliva collected in the last wave was deemed insufficient or of poor quality. Instrument error also resulted in repeated request for some cases.

Only respondents who have completed either CAPI or Mail-Only SAQ are eligible for request.

statkdna: Cumulative status code for return of Oragene saliva kit as of 2011 wave

Data source: Graduate Respondent      Collected in: 2011      Mode: not applicable
Source variables: trace
Revisions: Updated 7/2014     

Frequencies
Value Label Male Female Total
1 Completed saliva kit 2840 3127 5967
2 Completed kit but not consent 4 8 12
6 Refusal 366 493 859
7 Found deceased since 2008 fielding started 112 84 196
8 Unable 1 3 4
10 No further contact request since 2008 fielding started 157 226 383
13 Mail not returned, address assumed correct 510 628 1138
16 All data destroyed per Respondent 1 1 2
17 DNA data and material destroyed per Respondent 1 0 1
20 Mail undelivered or returned to sender with forwarding info 18 18 36
22 Not fielded, unable to locate or not in sample frame 94 141 235
23 Not fielded, known deceased prior to 2008 fielding 878 583 1461
24 Not fielded, no further contact request prior to 2008 fielding 9 14 23
Note: On public release, codes 8 and 13 are collapsed into 13; codes 10, 16 and 17 are collapsed into 10.

This variable is the cumulative status for return of Oragene kit from 2008 and 2011 biomarker collection effort, and is constructed from statk08 and statk11. Note that some of the non-contact cases (codes 13 and 20) might have been deceased during the fielding period. See DEATYR for respondent's year of death.

statc08: Status code for consent to use saliva from 2008 graduate biomarker collection (Added 7/2014)

Data source: Graduate Respondent      Collected in: 2008      Mode: not applicable
Source variables: trace

Frequencies
Value Label Male Female Total
1 Completed consent form 2236 2369 4605
6 Refused 716 967 1683
7 Deceased 33 32 65
8 Unable 4 6 10
10 No further contact request during fielding period 83 122 205
13 Mail not returned, address assumed correct 862 997 1859
17 Consent destroyed per respondent 1 0 1
20 Mail undelivered or returned to sender 45 68 113
22 Not fielded, unable to locate or not in sample frame 124 168 292
23 Not fielded, known deceased prior to fielding 878 583 1461
24 Not fielded, no further contact request prior to fielding 9 14 23
Note: On public release, codes 8 and 13 are collapsed into code 13; codes 10 and 17 are collapsed into 10.

If the saliva consent form was not returned (codes 13 or 20) and later we learned that the respondent was deceased prior to 2006 (from source such as Social Security Death Index), the case was assigned code 7. Code 7 also includes those who were reported as deceased during fielding period, mostly from information provided in the returned mail. In this measure, we do not attempt to recode non-contact case (codes 13 and 20) that might have been deceased during fielding period (2006-2008) to code 7, unless the deaths were reported by informants. See DEATYR for respondent's year of death.

Some of the deaths reported from the returned mail cannot be verified. We have discovered some cases of false report of death. The status of such cases have been changed to refusal (code 6).

This measure is based on the same information used to construct the STATCDNA released in versions prior to 13.02. In release 13.02, STATCDNA has been updated to include cumulative status from all waves of biomarker collection.

statc11: Status code for consent to use saliva from 2011 graduate biomarker collection (Added 7/2014)

Data source: Graduate Respondent      Collected in: 2011      Mode: not applicable
Source variables: trace

Frequencies
Value Label Male Female Total
1 Completed consent form 797 1045 1842
5 Refused by someone other than respondent 0 1 1
6 Refused 139 194 333
7 Deceased 21 7 28
8 Unable 0 1 1
10 No further contact request during fielding period 26 43 69
13 Mail not returned, address assumed correct 343 448 791
16 All data destroyed per respondent 1 1 2
22 Not fielded, unable to locate or not in sample frame 369 378 747
23 Not fielded, known deceased prior to fielding 1020 717 1737
24 Not fielded, no further contact request prior to fielding 150 192 342
25 Not eligible for request (already signed consent or CAPI and Mail-Only SAQ non-respondent) 2125 2299 4424
Note: On public release, codes 5, 8 and 13 are collapsed into code 13; codes 10 and 16 are collapsed into 10.

If the saliva consent form was not returned (codes 13 or 20) and later we learned that the respondent was deceased prior to 2009 (from source such as Social Security Death Index), the case was assigned code 7. Code 7 also includes those who were reported as deceased during fielding period, mostly from information provided in the returned mail. In this measure, we do not attempt to recode non-contact cases (codes 13 and 20) that might have been deceased during fielding period (2009-2013) to code 7, unless the deaths were reported by informants. See DEATYR for respondent's year of death. See STATCDNA for cumulative return status since the start of biomarker collection.

Only respondents who have completed either CAPI or Mail-Only SAQ are eligible for request.

statcdna: Cumulative status code for consent to use saliva as of 2011 wave

Data source: Graduate Respondent      Collected in: 2011      Mode: not applicable
Source variables: trace
Revisions: Updated 7/2014     

Frequencies
Value Label Male Female Total
1 Completed consent form 2844 3140 5984
6 Refusal 363 482 845
7 Found deceased since 2008 fielding started 112 84 196
8 Unable 0 2 2
10 No further contact request since 2008 fielding started 158 228 386
13 Mail not returned, address assumed correct 513 633 1146
16 All data destroyed per Respondent 1 1 2
17 Consent destroyed per Respondent 1 0 1
20 Mail undelivered or returned to sender with forwarding info 18 18 36
22 Not fielded, unable to locate or not in sample frame 94 141 235
23 Not fielded, known deceased prior to 2008 fielding 878 583 1461
24 Not fielded, no further contact request prior to 2008 fielding 9 14 23
Note: On public release, codes 8 and 13 are collapsed into 13; codes 10, 16 and 17 are collapsed into 10.

This variable is the cumulative status for return of saliva consent from 2008 and 2011 biomarker collection effort, and is constructed from statc08 and statc11. Note that some of the non-contact cases (codes 13 and 20) might have been deceased during the fielding period. See DEATYR for respondent's year of death.

statw11: Status code for Medicare Waiver from 2011 graduate interview (Added 7/2014)

Data source: Graduate Respondent      Collected in: 2011      Mode: not applicable
Source variables: trace

Frequencies
Value Label Male Female Total
1 Completed Medicare Waiver 2468 2801 5269
6 Refused 155 204 359
7 Deceased 14 4 18
8 Unable 10 10 20
10 No further contact request during fielding period 19 33 52
13 Mail not returned, address assumed correct 464 543 1007
16 All data destroyed per Respondent 1 1 2
17 Medicare waiver destroyed per Respondent 4 11 15
22 Not fielded, unable to locate or not in sample frame 369 378 747
23 Not fielded, known deceased prior to fielding 1020 717 1737
24 Not fielded, no further contact request prior to fielding 150 192 342
25 Not eligible for request 317 432 749
Note: On public release, codes 8 and 13 are collapsed into code 13; codes 10, 16, and 17 are collapsed into 10.

If a signed Medicare waiver was not returned (codes 13 or 20) and later we learned that the respondent was deceased prior to 2009 (from source such as Social Security Death Index), the case was assigned code 7. Code 7 also includes those who were reported as deceased during fielding period, mostly from information provided in the returned mail. In this measure, we do not attempt to recode non-contact cases (codes 13 and 20) that might have been deceased during fielding period (2009-2013) to code 7, unless the deaths were reported by informants. See DEATYR for respondent's year of death.

Some of the deaths reported from the returned mail cannot be verified. We have discovered some cases of false report of death. The status of such cases have been changed to refusal (code 6).

Only respondents who have completed either CAPI or Mail-Only SAQ are eligible for request.

stats11: Status code for Social Security Waiver from 2011 graudate interview (Added 7/2014)

Data source: Graduate Respondent      Collected in: 2011      Mode: not applicable
Source variables: trace

Frequencies
Value Label Male Female Total
1 Completed Social Security Waiver 2148 2428 4576
2 Parital complete/sure-to-fail SSAF 60 57 117
6 Refused 287 362 649
7 Deceased 17 6 23
8 Unable 11 8 19
10 No further contact request during fielding period 23 37 60
13 Mail not returned, address assumed correct 580 696 1276
16 All data destroyed per respondent 1 2 3
17 Social Security waiver destroyed per respondent 6 8 14
20 Mail undelivered or returned to sender with forwarding info 2 3 5
22 Not fielded, unable to locate or not in sample frame 369 378 747
23 Not fielded, known deceased prior to fielding 1020 717 1737
24 Not fielded, no further contact request prior to fielding 150 192 342
25 Not eligible for request 317 432 749
Note: On public release, codes 8, 13 and 20 are collapsed into code 13; codes 10, 16, 17 are collapsed into 10.

If a signed Social Security waiver was not returned (codes 13 or 20) and later we learned that the respondent was deceased prior to 2009 (from source such as Social Security Death Index), the case was assigned code 7. Code 7 also includes those who were reported as deceased during fielding period, mostly from information provided in the returned mail. In this measure, we do not attempt to recode non-contact cases (codes 13 and 20) that might have been deceased during fielding period (2009-2013) to code 7, unless the deaths were reported by informants. See DEATYR for respondent's year of death.

Some of the deaths reported from the returned mail cannot be verified. We have discovered some cases of false report of death. The status of such cases have been changed to refusal (code 6).

Only respondents who have completed either CAPI or Mail-Only SAQ are eligible for request.

ia008re: Number of mail questionnaires sent to graduate respondent in 2004.

Data source: Graduate Respondent      Collected in: 2004      Mode: not applicable
Source variables: trace

Frequencies
Value Label Male Female Total
0 1083 805 1888
1 3011 3540 6551
2 268 287 555
3 629 694 1323

dupid: ID that links a graduate record to its duplicate (as a selected sibling of another record)

Data source: Graduate Respondent      Collected in: 1957-      Mode: not applicable
Source variables: trace
*NOT AVAILABLE ON PUBLIC RELEASE*

Frequencies
Value Label Male Female Total
-2 4976 5299 10275
5 - 12 4 4 8
13 - 20 0 8 8
21 - 28 5 3 8
29 - 36 5 3 8
37 - 46 1 9 10
Note: Some graduates in the sample are also selected siblings. This variable can be used with XDUPID to find the sibling duplicate of a graduate case. DUPID and XDUPID with the same value belong to the same person. See note for XDUPID for an example.

xduprtp: Respondent type of the sibling record's duplicate (either as the graduate or the sibling of another record)

Data source: Sibling Respondent      Collected in: 1957-      Mode: not applicable
Source variables: trace
*NOT AVAILABLE ON PUBLIC RELEASE*

Frequencies
Value Label Male Female Total
-2 4416 4310 8726
1 graduate sample 15 27 42
2 sibling sample 6 4 10
Note: Some sibling respondents have duplicates in the data (see XSIBSTAT for various types of duplicates). This variable can be used with XDUPID and DUPID to locate the duplicate records. If the variable has a positive value, the selected sibling in the corresponding record has a duplicate. The positive value indicates whether the duplicate of current sib record is in the grad or sib section of the other record; this duplicate record can then be located by matching the XDUPID of current record with the DUPID or XDUPID of all the other records (see note for XDUPID for an example).

All graduate respondents' duplicates (if any) are selected siblings and therefore there is no corresponding version of the variable for the graduate.

xdupid: ID that links a sibling record to its duplicate (either as the graduate or the sibling of another record)

Data source: Sibling Respondent      Collected in: 1957-      Mode: not applicable
Source variables: trace
*NOT AVAILABLE ON PUBLIC RELEASE*

Frequencies
Value Label Male Female Total
-2 4416 4310 8726
1 - 6 8 2 10
7 - 16 2 8 10
17 - 26 3 7 10
27 - 36 7 3 10
37 - 47 1 11 12
Note: This variable can be used with XDUPRTP and DUPID to locate the duplicate record. Use XDUPRTP to determine whether the duplicate of current sib record is in the grad or sib section of the data set, and then use XDUPID to search for matching DUPID (if XDUPRTP=1) or XDUPID (if DURRTP=2) among all other records. For example, for any pair of two different records I and J, if the sib of I has a duplicate as a grad (XDUPRTP=1) and XDUPID=N, the grad record of J with DUPID=N and I's sib are each other's duplicates. On the other hand, if the sib record of I has a duplicate also as a sib (XDUPRTP=2) and XDUPID=M, the sib record of J with XDUPID=M and I's sib are each other's duplicates.

xsibstat: Selected sibling status

Data source: Sibling Respondent      Collected in: 1975,1993      Mode: not applicable
Source variables: trace
*NOT AVAILABLE ON PUBLIC RELEASE*

Frequencies
Value Label Male Female Total
0 Selected sib 4419 4312 8731
1 Duplicate selected sib, shared by two grads 3 2 5
2 Selected sib also a grad, not reciprocal sib 3 3 6
3 Selected sib also a grad, reciprocal selected sib 12 24 36
Note: If a selected sibling is shared by two graduates, and therefore represeted by two sibling records, the XSIBSTAT of one sibling record is coded 0 while the other coded 1. From the 2008 on, the sibling records with XSIBSTAT=0 are designated as the primary records. In cases where XSIBSTAT is equal to 2 or 3 (siblings who are also graduates), the graduate records are always the primary records. Beginning from the 2008 Biomarker data collection, only the IDs of the graduate and the primary sibling records were used for survey data collection, so each respondent was interviewed only once. In the post-survey data processing, data from the primary records were then copied to the duplicate records.

xcmbrdx: Century Month of Sib-Respondent's Birthdate (Q91)

Data source: Sibling Respondent      Collected in: 1975      Mode: not applicable
Source variables: trace
Revisions: Updated 3/97, 2005, 07/2007     
*NOT AVAILABLE ON PUBLIC RELEASE*

Frequencies
Value Label Male Female Total
-3 Not ascertained or nonsample 1304 1177 2481
114 - 843 CENTURY MONTHS 3133 3164 6297
Note: Century Month= Last 2 digits of year times 12 plus month. See Appendix A - COR607 for more details; including converting century month back to year and month.

Six sib-respondents refused this information in 1977.

See Appendix A - COR700 for Background variables for the 1977 sibling study.

xbrdxdy: Year of Sib-Respondent's Birth (Q91)

Data source: Sibling Respondent      Collected in: 1975      Mode: not applicable
Source variables: trace
Revisions: Updated 3/97, 03/02, 2005, 07/07     

Frequencies
Value Label Male Female Total
-3 Not ascertained or nonsample 19 10 29
6 - 70 1906-1970 4418 4331 8749
Note: In the public data, XBRDXDY is bottom coded at 18 and top-coded at 60; 19 to 21 are collapsed into 20; 57 to 59 are collapsed into 58.

See Appendix A - COR700 for Background variables for the 1977 sibling study.

ssbsex: Sex of Selected Sib (Q77, 79)

Data source: Sibling Respondent      Collected in: 1975      Mode: not applicable
Source variables: 402B, 402D, 402
Revisions: Updated 11/95 with 1993 survey data for 1975 NRs, 3/96, 3/97     

Frequencies
Value Label Male Female Total
1 MALE 4437 0 4437
2 FEMALE 0 4341 4341
Note: See Appendix A - COR368a for Sibling data construction.

This variable is identical to ssbsex75 in the 1975 graduates Selected Sibling module.

xlivsib: Is the Sib-Respondent alive as of current release as far as we know?

Data source: Sibling Respondent      Collected in: 1975-      Mode: not applicable
Source variables: trace
Revisions: Updated 11/2014     

Frequencies
Value Label Male Female Total
1 Yes, Respondent is not known to be deceased 3240 3562 6802
2 No, Respondent is deceased 1197 779 1976
Note: Anytime we learn of a sibling's death, the information is added to XLIVSIB, XDEATMN, XDEATYR and becomes available with the next data release.

These frequencies are for all siblings in the wave I data file.

Variables XDEATC and XDEATST were removed with the 03/2002 update. Updated information from the NDI search is available in the National Death Index Module.

xdeatyr: Year of Sib-Respondent's death.

Data source: Sibling Respondent      Collected in: 1975-      Mode: not applicable
Source variables: trace
Revisions: Updated 11/2014     

Frequencies
Value Label Male Female Total
-2 3240 3562 6802
1969 - 2013 Year of death 1176 758 1934
2014 2 2 4
9972 DK, last contact in 1977 sibling interview 3 1 4
9974 DK, last contact in 1993-94 sibling interview 4 5 9
9976 DK, last contact in 2004-07 sibling interview 4 1 5
9977 DK, last contact for 2008-10 biomarker collection 0 5 5
9997 DK, before 1993-94 sibling interview 5 2 7
9999 DK, before 2004-07 sibling interview 3 5 8
Note: These frequencies are for all siblings in the wave I data file.

Anytime we learn of a sibling's death, the information is added to XLIVSIB, XDEATYR and XDEATMN, and becomes available with the next data release.

XDEATYR and XDEATMN are also updated periodically with Social Security Administration's death database.

xdeatmn: Month of Sib-Respondent's death. (Added 4/2007)

Data source: Sibling Respondent      Collected in: 1975-      Mode: not applicable
Source variables: trace
Revisions: Updated 11/2014     
*NOT AVAILABLE ON PUBLIC RELEASE*

Frequencies
Value Label Male Female Total
-4 Not ascertained 63 60 123
-2 3240 3562 6802
1 - 12 Month of death 1134 719 1853

xstat77: 1977 Sib-Respondent's Status Code (coversheet)

Data source: Sibling Respondent      Collected in: 1977      Mode: not applicable
Source variables: trace
Revisions: Updated 3/97, 2003     

Frequencies
Value Label Male Female Total
-3 Nonsample (including supplementary sample) 3788 4091 7879
-2 17 19 36
-1 Not found 23 15 38
1 Interviewed in 1977 1036 1072 2108
2 Refusal-- completed less than Q19d of 1977 Questionnaire 49 61 110
3 Unpublished phone 2 11 13
4 No phone 24 11 35
5 Handicapped 7 6 13
6 Deceased between 1975 and 1977 6 3 9
7 Out of U.S.A. 26 19 45
9 Sib-Respondent could not be contacted for duration of study 5 0 5
10 Interviewed in 1975 and reproduced interview for use in 1977 8 17 25
11 Interviewed in 1975 and interview not reproduced for use in 1977 0 1 1
Note: In order to include all possible status codes, frequencies are displayed for the graduate's gender.

xstat93p: Outcome of 1993-1994 sibling telephone interview. (Added 11/95)

Data source: Sibling Respondent      Collected in: 1993      Mode: not applicable
Source variables: trace
Revisions: Updated 3/96, 3/97, 2005 see Change Notices     

Frequencies
Value Label Male Female Total
1 SENT TO BE INTERVIEWED, NEVER STARTED 81 81 162
2 SENT TO BE INTERVIEWED, SIB UNABLE TO BE INTERVIEWED, CAN'T RETRACE, OUT OF COUNTRY, UNLISTED PHONE NUMBER 87 114 201
3 SENT TO BE INTERVIEWED, REFUSED 260 275 535
4 PHONE INTERVIEW COMPLETE 2261 2517 4778
5 SENT TO BE INTERVIEWED, DECEASED 9 23 32
6 NOT SENT TO BE INTERVIEWED, DECEASED 203 227 430
7 NOT SENT, UNABLE TO LOCATE OR SIB UNABLE TO BE INTERVIEWED 244 286 530
8 SIB INTERVIEWED AS AN ORIGINAL RESPONDENT IN 1992-1993 - THAT DATA REPRODUCED IN WLS23S. 6 20 26
9 NOT SENT, PRIMARY RESPONDENT NOT INTERVIEWED IN 1992-1993 AND SIBLING NOT INTERVIEWED IN 1977 380 344 724
10 NOT SENT, OUT OF FUNDS, GROUPS 0 AND 1, NOT 1977 SELECTED SIBLING SAMPLE 447 522 969
11 PRIMARY RESPONDENT HAS NO SIBLINGS OR REFUSED TO DISCUSS SIBLINGS 345 394 739
12 PRIMARY RESPONDENT NOT INTERVIEWED IN 1975 661 518 1179
13 NOT SENT, SIBLING REFUSED DURING TRACING OR PRIMARY RESPONDENT REQUESTED THAT SIB NOT BE CONTACTED 7 5 12
Note: Nineteen cases that were previously coded 10, were changed to 9 in the 3/96 release. The original code of 10 was incorrect for these 19 cases.

For the 3/97 edition nine 1975 primary respondents who were also selected siblings had their data carried over to the 1977 selected sibling section. See Change Notice #6 for details.

In order to include all possible status codes, frequencies are displayed for the graduate's gender.

xstat93m: Outcome of 1993-1994 sibling mail interview.

Data source: Sibling Respondent      Collected in: 1993      Mode: not applicable
Source variables: trace
Revisions: Updated 1/99 See Change Notices     

Frequencies
Value Label Male Female Total
1 MAIL QUESTIONNAIRE AND PHONE INTERVIEW COMPLETED 1638 1840 3478
2 MAIL QUESTIONNAIRE COMPLETED, NO PHONE INTERVIEW COMPLETED 257 304 561
3 MAIL QUESTIONNAIRE WAS SENT TO SIBLING, NOT RETURNED 875 761 1636
4 NO MAIL QUESTIONNAIRE WAS SENT TO SIBLING 1660 1420 3080
5 INTERVIEWED AS AN ORIGINAL RESPONDENT IN 1992-93 - THAT DATA REPRODUCED FOR WLS23M. 7 16 23
Note: New codes were assigned in the 3/96 release to distinguish between those siblings who completed the phone and mail interviews and those who only completed the mail interview.

All siblings who were interviewed in 1977 and all siblings of respondents who completed the telephone interview in 1992/93 were scheduled to be interviewed by telephone in 1993-1994. Addtionally, siblings who completed the 1993/94 telephone interview were to be sent a mail questionnaire. Due to budget constraints, it was not possible to complete all these interviews. Telephone interviews were attempted for all those siblings who were interviewed in 1977 (XSTAT77=1) and for all other siblings from groups (GROUP91) 2-9 (if the respondent completed a telephone interview in 1992/93). Mail questionnaires were sent to the remaining 970 siblings from groups 0 and 1 (if the respondent completed the telephone interview). These mail questionnaires contained two additional pages ascertaining information about marriage, current job, children, birthdate, education and spouse's job. 559 of these siblings returned the mail questionnaire (XSTAT93M=2).

For the 3/97 edition nine 1975 primary respondents who were also selected siblings had their data carried over to the 1977 selected sibling section. See Change Notice #6 for details.

Frequencies are displayed for the sibling's gender.

xstat05p: Outcome of 2005 sibling telephone interview (Added 1/07)

Data source: Sibling Respondent      Collected in: 2005      Mode: not applicable
Source variables: trace

Frequencies
Value Label Male Female Total
1 COMPLETE INTERVIEW 1961 2134 4095
2 USEABLE PARTIAL, OUT OF FIELD BEFORE COMPLETION 28 11 39
3 USEABLE PARTIAL, REFUSED TO COMPLETE 61 75 136
4 UNUSABLE PARTIAL, OUT OF FIELD BEFORE COMPLETION 8 15 23
5 UNUSABLE PARTIAL, REFUSED TO COMPLETE 67 86 153
6 REFUSAL FOR ENTIRE FIELD PERIOD 330 386 716
7 DECEASED 542 684 1226
8 FIELDED-UNABLE 21 22 43
9 NONFIELDED-PERMANENT HANDICAP 0 2 2
10 NONFIELDED-NON RESPONDENT IN BOTH 77 & 94, NOT IN MAIL ONLY SAMP 1466 1337 2803
11 NONFIELDED-REQUEST NO FURTHER CONTACT 23 19 42
13 FIELDED - NONCONTACT 67 79 146
15 NONFIELDED-ERROR 3 2 5
16 NONFIELDED - SIBLING ALSO GRAD OR SELECTED SIBLING OF ANOTHER GRAD 8 19 27
19 NO SELECTED SIBLING 345 394 739
20 FIELDED - UNABLE TO LOCATE 61 61 122
Note: In order to include all possible status codes, frequencies are displayed for the graduate's gender.

xstat05m: Outcome of 2005 sibling mail back questionnaire (Added 6/07)

Data source: Sibling Respondent      Collected in: 2005      Mode: not applicable
Source variables: trace

Frequencies
Value Label Male Female Total
1 Mail returned, entire phone interview completed 1626 1868 3494
2 Mail returned, partial useable phone completed 37 40 77
3 Mail returned, no ueseable phone completed 205 201 406
4 Mail questionnaire sent, not returned 713 664 1377
5 Mail questionniare not sent 1856 1568 3424
Note: Frequencies are displayed for the sibling's gender.

xstat05s: Outcome of 2005-07 sibling spouse telephone interview.

Data source: Sibling Spouse Respondent      Collected in: 2005      Mode: not applicable
Source variables: trace

Frequencies
Value Label Male Female Total
1 Complete interview 1168 931 2099
2 Useable partial, out of field before completion 1 1 2
3 useable partial, refused to complete 10 14 24
5 unusable partial, refused to complete 8 11 19
6 refusal for entire field period 365 430 795
7 deceased 4 18 22
8 fielded - unable 18 43 61
11 11 nonfielded - request no further contact 1 0 1
13 fielded - noncontact 21 23 44
15 nonfielded - divorced according to spouse fielding attempt 11 4 15
16 nonfielded - spouse also grad 6 12 18
17 nonfielded - spouse also sib 17 17 34
18 sib did not compelte the entire tel interv in 2005 2483 2187 4670
19 sib not married in 2005 309 638 947
20 nonfielded - out of field before retrace complete 15 12 27
Note: Codes 11, 15, 16 and 17 are collapsed into code 25 on public release.
Note: Frequencies are displayed for the sibling's gender.

xstat11p: Outcome of 2011 Sibling in-person interview.

Data source: Sibling Respondent      Collected in: 2011      Mode: not applicable
Source variables: trace
Revisions: Updated 8/2013     

Frequencies
Value Label Male Female Total
1 In-Person Complete 1588 1712 3300
2 Telephone Complete 30 43 73
4 In-Person Usable Breakoff 4 0 4
5 Telephone Usable Partial 0 1 1
6 Proxy In-Person Complete 1 1 2
7 Proxy Telephone Complete 6 11 17
9 Lost Data; Complete Interview; Malfunction 0 1 1
10 Refused 431 542 973
11 Deceased 136 107 243
12 Physically or Mentally Unable 7 11 18
13 Unusable Partial 1 3 4
14 Unusable Breakoff 3 1 4
15 Fielded but no contact with R or unavailable 45 57 102
17 Not Fielded 2185 1851 4036
Note: While the majority of completed interviews were administered in-person, starting in the fall of 2012 we fielded a telephone-version of the interview to retain participants who chose not to be interviewed in-person and to include a few remaining participants where interviewer travel was cost-prohibitive. Code 17 includes participants who were known to be deceased, participants who asked us not to contact them again, and participants who did not participate in either the 1993 or 2004 wave.

xstat11m: Outcome of 2011 Sibling SAQ.

Data source: Sibling Respondent      Collected in: 2011      Mode: not applicable
Source variables: trace
Revisions: Updated 8/2013     

Frequencies
Value Label Male Female Total
1 Returned Completed 1344 1497 2841
2 Returned Mail Only SAQ 73 63 136
3 Proxy Returned Completed 6 7 13
4 Refused or Returned Blank 237 329 566
5 Deceased 137 109 246
6 Nothing Returned 451 483 934
7 Physically or Mentally Unable 4 2 6
9 Not Fielded 2185 1851 4036
Note: At the end of the in-person interview, Participants were handed a self-administered-questionnare (SAQ) to complete at a later time and mail back to the survey center. Participants who completed the telephone version of the interview instead of the in-person version were mailed a SAQ. Additionally, participants who declined the in-person interview and the alternate telephone interview were mailed a modified version of the self-administered-questionnare. We refer to this instrument as Mail Only Self-Administered Questionnaire or MOSAQ. Participants who started the in-person or telephone interview but did not finish the interview were also mailed the MOSAQ.

xstatk08: Status code for return of Oragene saliva kit from 2008 sibling biomarker collection (Added 7/2014)

Data source: Sibling Respondent      Collected in: 2008      Mode: not applicable
Source variables: trace

Frequencies
Value Label Male Female Total
1 Completed saliva kit (with or without consent) 1231 1320 2551
6 Refused 351 488 839
7 Deceased 4 1 5
8 Unable 1 1 2
10 No further contact request during fielding period 22 31 53
13 Mail not returned, address assumed correct 551 550 1101
20 Mail undelivered or returned to sender with forwarding info 16 16 32
22 Not fielded, unable to locate or not in sample frame 1348 1359 2707
23 Not fielded, known deceased prior to fielding 894 554 1448
24 Not fielded, no further contact request prior to fielding 19 21 40
Note: On public release, codes 8 and 13 are collapsed into code 13.

If the Oragene kit was not returned (codes 13 or 20) and later we learned that the respondent was deceased prior to 2006 (from source such as Social Security Death Index), the case was assigned code 7. Code 7 also includes those who were reported as deceased during fielding period, mostly from information provided in the returned mail. In this measure, we do not attempt to recode non-contact case (codes 13 and 20) that might have been deceased during fielding period (2006-2008) to code 7, unless the deaths were reported by informants. See XDEATYR for respondent's year of death.

Some of the deaths reported from the returned mail cannot be verified. We have discovered some cases of false report of death. The status of such cases have been changed to refusal (code 6).

This measure is based on the same information used to construct the XSTATKDNA released in versions prior to 13.02. In release 13.02, XSTATKDNA has been updated to include cumulative status from all waves of biomarker collection.

xstatk11: Status code for return of Oragene saliva kit from 2011 sibling biomarker collection (Added 7/2014)

Data source: Sibling Respondent      Collected in: 2011      Mode: not applicable
Source variables: trace

Frequencies
Value Label Male Female Total
1 Completed saliva kit (with or without consent) 579 673 1252
6 Refused 77 101 178
7 Deceased 25 13 38
8 Unable 1 4 5
10 No further contact request during fielding period 31 20 51
13 Mail not returned, address assumed correct 286 333 619
17 DNA data and material destroyed per respondent 0 1 1
22 Not fielded, unable to locate or not in sample frame 1181 1160 2341
23 Not fielded, known deceased prior to fielding 908 558 1466
24 Not fielded, no further contact request prior to fielding 88 112 200
25 Not eligible for request (already donated saliva or CAPI and Mail-Only SAQ non-respondent) 1261 1366 2627
Note: On public release, codes 8 and 13 are collapsed into 13; codes 10 and 17 are collapsed into 10.

If the Oragene kit was not returned (codes 13 or 20) and later we learned that the respondent was deceased prior to 2009 (from source such as Social Security Death Index), the case was assigned code 7. Code 7 also includes those who were reported as deceased during fielding period, mostly from information provided in the returned mail. In this measure, we do not attempt to recode non-contact cases (codes 13 and 20) that might have been deceased during fielding period (2009-2013) to code 7, unless the deaths were reported by informants. See XDEATYR for respondent's year of death. See XSTATKDNA for cumulative return status since the start of biomarker collection.

Only respondents who have completed either CAPI or Mail-Only SAQ are eligible for request.

xstatkdna: Cumulative status code for return of Oragene saliva kit as of 2011 wave

Data source: Sibling Respondent      Collected in: 2011      Mode: not applicable
Source variables: trace
Revisions: Updated 7/2014     

Frequencies
Value Label Male Female Total
1 Completed saliva kit 1669 1771 3440
2 Completed kit but not consent 3 5 8
6 Refusal 177 258 435
7 Found deceased since 2008 fielding started 36 29 65
8 Unable 1 3 4
10 No further contact request since 2008 fielding started 85 103 188
13 Mail not returned, address assumed correct 386 397 783
17 DNA data and material destroyed per Respondent 0 1 1
20 Mail undelivered or returned to sender with forwarding info 2 1 3
22 Not fielded, unable to locate or not in sample frame 1164 1197 2361
23 Not fielded, known deceased prior to 2008 fielding 895 554 1449
24 Not fielded, no further contact request prior to 2008 fielding 19 22 41
Note: On public release, codes 8, 13, and 20 are collapsed into code 13; codes 10 and 17 are collapsed into 10.

This variable is the cumulative status for return of Oragene kit from 2008 and 2011 biomarker collection effort, and is constructed from xstatk08 and xstatk11. Note that some of the non-contact cases (codes 13 and 20) might have been deceased during the fielding period. See XDEATYR for respondent's year of death.

xstatc08: Status code for consent to use saliva from 2008 sibling biomarker collection (Added 7/2014)

Data source: Sibling Respondent      Collected in: 2008      Mode: not applicable
Source variables: trace

Frequencies
Value Label Male Female Total
1 Completed consent form 1229 1319 2548
6 Refused 352 487 839
7 Deceased 4 1 5
8 Unable 1 1 2
10 No further contact request during fielding period 22 31 53
13 Mail not returned, address assumed correct 552 552 1104
20 Mail undelivered or returned to sender with forwarding info 16 16 32
22 Not fielded, unable to locate or not in sample frame 1348 1359 2707
23 Not fielded, known deceased prior to fielding 894 554 1448
24 Not fielded, no further contact request prior to fielding 19 21 40
Note: On public release, codes 8 and 13 are collapsed into code 13.

If the saliva consent form was not returned (codes 13 or 20) and later we learned that the respondent was deceased prior to 2006 (from source such as Social Security Death Index), the case was assigned code 7. Code 7 also includes those who were reported as deceased during fielding period, mostly from information provided in the returned mail. In this measure, we do not attempt to recode non-contact case (codes 13 and 20) that might have been deceased during fielding period (2006-2008) to code 7, unless the deaths were reported by informants. See XDEATYR for respondent's year of death.

Some of the deaths reported from the returned mail cannot be verified. We have discovered some cases of false report of death. The status of such cases have been changed to refusal (code 6).

This measure is based on the same information used to construct the XSTATCDNA released in versions prior to 13.02. In release 13.02, XSTATCDNA has been updated to include cumulative status from all waves of biomarker collection.

xstatc11: Status code for consent to use saliva from 2011 sibling biomarker collection (Added 7/2014)

Data source: Sibling Respondent      Collected in: 2011      Mode: not applicable
Source variables: trace

Frequencies
Value Label Male Female Total
1 Completed consent form 581 678 1259
6 Refused 75 91 166
7 Deceased 25 12 37
8 Unable 1 3 4
10 No further contact request during fielding period 31 20 51
13 Mail not returned, address assumed correct 287 340 627
17 Consent destroyed per respondent 0 1 1
22 Not fielded, unable to locate or not in sample frame 1181 1160 2341
23 Not fielded, known deceased prior to fielding 908 558 1466
24 Not fielded, no further contact request prior to fielding 88 112 200
25 Not eligible for request (already signed consent or CAPI and Mail-Only SAQ non-respondent) 1260 1366 2626
Note: On public release, codes 8 and 13 are collapsed into code 13; codes 10 and 17 are collapsed into 10.

If the saliva consent form was not returned (codes 13 or 20) and later we learned that the respondent was deceased prior to 2009 (from source such as Social Security Death Index), the case was assigned code 7. Code 7 also includes those who were reported as deceased during fielding period, mostly from information provided in the returned mail. In this measure, we do not attempt to recode non-contact cases (codes 13 and 20) that might have been deceased during fielding period (2009-2013) to code 7, unless the deaths were reported by informants. See XDEATYR for respondent's year of death. See XSTATCDNA for cumulative return status since the start of biomarker collection.

Only respondents who have completed either CAPI or Mail-Only SAQ are eligible for request.

xstatcdna: Cumulative status code for consent to use saliva as of 2011 wave

Data source: Sibling Respondent      Collected in: 2011      Mode: not applicable
Source variables: trace
Revisions: Updated 7/2014     

Frequencies
Value Label Male Female Total
1 Completed consent form 1673 1778 3451
6 Refusal 175 249 424
7 Found deceased since 2008 fielding started 36 29 65
8 Unable 1 3 4
10 No further contact request since 2008 fielding started 85 103 188
13 Mail not returned, address assumed correct 387 404 791
17 Consent destroyed per Respondent 0 1 1
20 Mail undelivered or returned to sender with forwarding info 2 1 3
22 Not fielded, unable to locate or not in sample frame 1164 1197 2361
23 Not fielded, known deceased prior to 2008 fielding 895 554 1449
24 Not fielded, no further contact request prior to 2008 fielding 19 22 41
Note: On public release, codes 8, 13, 20 are collapsed into code 13, and codes 10 and 17 into code 10.

This variable is the cumulative status for return of saliva consent form from 2008 and 2011 biomarker collection effort, and is constructed from xstatc08 and xstatc11. Note that some of the non-contact cases (codes 13 and 20) might have been deceased during the fielding period. See XDEATYR for respondent's year of death.

xstatw05: Obtain permission for Medicare record in 2005 sibling telephone interview

Data source: Sibling Respondent      Collected in: 2005      Mode: not applicable
Source variables: trace

Frequencies
Value Label Male Female Total
-4 Not ascertained 126 160 286
-2 1186 1267 2453
1 Gave permission 552 577 1129
2 Did not give permission 179 245 424
3 Non-respondent at the 2004-7 sibling interview, see xstat05p 2394 2092 4486

xstatw11: Status code for Medicare Waiver from 2011 sibling interview (Added 7/2014)

Data source: Sibling Respondent      Collected in: 2011      Mode: not applicable
Source variables: trace

Frequencies
Value Label Male Female Total
1 Completed Medicare Waiver 777 878 1655
6 Refused 57 68 125
7 Deceased 21 11 32
8 Unable 1 8 9
10 No further contact request during fielding period 26 19 45
13 Mail not returned, address assumed correct 287 313 600
17 Medicare waiver destroyed per respondent 0 4 4
22 Not fielded, unable to locate or not in sample frame 1181 1158 2339
23 Not fielded, known deceased prior to fielding 908 558 1466
24 Not fielded, no further contact request prior to fielding 88 112 200
25 Not eligible for request 1091 1212 2303
Note: On public release, codes 8 and 13 are collapsed into code 13; codes 10 and 17 are collapsed into 10.

If a signed Medicare waiver was not returned (codes 13 or 20) and later we learned that the respondent was deceased prior to 2009 (from source such as Social Security Death Index), the case was assigned code 7. Code 7 also includes those who were reported as deceased during fielding period, mostly from information provided in the returned mail. In this measure, we do not attempt to recode non-contact cases (codes 13 and 20) that might have been deceased during fielding period (2009-2013) to code 7, unless the deaths were reported by informants. See XDEATYR for respondent's year of death.

Some of the deaths reported from the returned mail cannot be verified. We have discovered some cases of false report of death. The status of such cases have been changed to refusal (code 6).

Only respondents who have completed either CAPI or Mail-Only SAQ are eligible for request.

xstats11: Status code for Social Security Waiver from 2011 interview (Added 7/2014)

Data source: Sibling Respondent      Collected in: 2011      Mode: not applicable
Source variables: trace

Frequencies
Value Label Male Female Total
1 Completed Social Security Waiver 1282 1317 2599
2 Parital complete/sure-to-fail SSAF 36 48 84
6 Refused 177 214 391
7 Deceased 19 12 31
8 Unable 4 9 13
10 No further contact request during fielding period 28 20 48
13 Mail not returned, address assumed correct 411 486 897
17 Social Security waiver destroyed per respondent 3 4 7
20 Mail undelivered or returned to sender with forwarding info 0 1 1
22 Not fielded, unable to locate or not in sample frame 1181 1158 2339
23 Not fielded, known deceased prior to fielding 908 558 1466
24 Not fielded, no further contact request prior to fielding 88 112 200
25 Not eligible for request 300 402 702
Note: On public release, codes 8, 13 and 20 are collapsed into code 13; codes 10 and 17 are collapsed into 10.

If a signed Social Security waiver was not returned (codes 13 or 20) and later we learned that the respondent was deceased prior to 2009 (from source such as Social Security Death Index), the case was assigned code 7. Code 7 also includes those who were reported as deceased during fielding period, mostly from information provided in the returned mail. In this measure, we do not attempt to recode non-contact cases (codes 13 and 20) that might have been deceased during fielding period (2009-2013) to code 7, unless the deaths were reported by informants. See XDEATYR for respondent's year of death.

Some of the deaths reported from the returned mail cannot be verified. We have discovered some cases of false report of death. The status of such cases have been changed to refusal (code 6).

Only respondents who have completed either CAPI or Mail-Only SAQ are eligible for request.

xsmtwin: Sample Code for Twins for 1977 Sibling Sample

Data source: Sibling Respondent      Collected in: 1977      Mode: not applicable
Source variables: trace
Revisions: Updated 3/97     

Frequencies
Value Label Male Female Total
-3 Nonsample 3393 3252 6645
0 No-- 1975 respondent and 1977 sibling respondent not twins 983 1025 2008
1 Yes-- 1975 respondent and 1977 sibling respondent twins 61 64 125
Note: See Appendix A - COR700 for Background variables for the 1977 sibling study.

This variable is identical to xsmtwinx in the 1977 siblings Summary, Status and Geography module. See xsmtwinx for source variables.

rinlife: Was Grad selected for 1997 life history survey? (Added 2004)

Data source: Graduate Respondent      Collected in: 2004      Mode: not applicable
Source variables: trace
*NOT AVAILABLE ON PUBLIC RELEASE*

Frequencies
Value Label Male Female Total
-3 Not ascertained 1011 813 1824
-2 3821 4313 8134
1 Invited to participate, no to privacy/consent waiver 33 44 77
2 Inivited to participate, no response to request for privacy/consent waiver 11 15 26
3 In sample deceased 3 3 6
4 Invited to participate, not found or too far away 5 5 10
5 Signed privacy/consent waiver 107 133 240

rlifesit: Life-situation of Grad as determined by 1992 data. (Added 2004)

Data source: Graduate Respondent      Collected in: 2004      Mode: not applicable
Source variables: trace
*NOT AVAILABLE ON PUBLIC RELEASE*

Frequencies
Value Label Male Female Total
-3 Non respondent in 1992/93 1011 813 1824
-2 3821 4313 8134
1 Healthy - Both adversity and advantage 13 11 24
2 Healthy - Neither adversity nor advantage 8 18 26
3 Depressed - Both adversity and advantage 4 2 6
4 Depressed, neither adversity nor advantage 0 1 1
5 Depressed - Adversity only (no advantage) 3 8 11
6 Depressed, Advantage only (no adversity) 2 3 5
7 Resilient - Both adversity and advantage 2 8 10
8 Resilient - Neither advantage nor adversity 4 8 12
9 Resilient - Adversity only, no advantage 4 9 13
10 Resilient - Advantage only, no adversity 3 5 8
11 Vulnerable, adveristy, no advantage 22 21 43
12 Healthy, advantage, no adversity 26 23 49
13 Healthy, adversity, no advantage 38 48 86
14 Vulnerable, advantage, no adversity 30 35 65

rliferpt: Level of Grad's participation in 1997 life history survey. (Added 2004)

Data source: Graduate Respondent      Collected in: 2004      Mode: not applicable
Source variables: trace
*NOT AVAILABLE ON PUBLIC RELEASE*

Frequencies
Value Label Male Female Total
-3 Nonrespondent in 1992/93 1011 813 1824
-2 3873 4380 8253
1 In person and mail interviews only 29 51 80
2 In person & mail, GCRC & emotions lab 8 13 21
3 In person & mail, immune functions 4 12 16
4 In persion & mail, GCRC, emotions lab & immune 49 36 85
5 In sample, nonresponse 17 21 38

rlifewv: Which wave of 1997 life history? (Added 2004)

Data source: Graduate Respondent      Collected in: 2004      Mode: not applicable
Source variables: trace
*NOT AVAILABLE ON PUBLIC RELEASE*

Frequencies
Value Label Male Female Total
-3 Nonrespondent in 1992/93 1011 813 1824
-2 3821 4313 8134
0 0 54 59 113
1 1 62 68 130
2 2 43 73 116

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