WLS Codebooks

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.

In Person: Abbreviated Diabetes Knowledge Test (DKT)

JDIAB  Abbreviated Diabetes Knowledge Test (DKT) Module

OVERVIEW

The Abbreviated Diabetes Knowledge Test Module is new to the 2011 collection
wave. At its core are selected questions from the 23-item "Diabetes Knowledge
Test (DKT)," which assesses general knowledge about diabetes using a multiple
choice format. The first fourteen items of the DKT can be appropriately
administered to both diabetics and non-diabetics, while the subsequent nine
items should only be administered to diabetics who use insulin. Within the
context of the CAPI interview, seven DKT items appropriate for both diabetics
and non-diabetics were asked to a randomly selected 15% sub-sample of
participants, as well as all participants who - in the Health Module - reported
ever having been diagnosed with diabetes. DKT items selected for inclusion in
this module addressed the following: the nutritional value of various foods
relative to others; measurement of blood glucose levels, as well as their
sensitivity to different foods; and risk factors and complications associated
with diabetes. For more information about the unabridged Diabetes Knowledge
Test, please see http://www.med.umich.edu/mdrtc/profs/survey.html#dkt.


BRIEF VARIABLE DESCRIPTIONS

    Variable ranges reference dataset/codebook order and are not necessarily 
    alphabetical.
    _____________________________________________________________________

    HDBSTAT-HDBREL:	    Module-Level Status Variables
    
    HX570RE:		    Summary of Whether Participant was Eligible
    			    to be Assessed Using the Abbreviated DKT

    HX571RE:		    Number of Questions Attempted if All Seven
    			    Abbreviated DKT Items Were Asked of the
    			    Participant

    HX572RE:		    Number of Questions Answered Correctly if 
    			    Participant Attempted All Seven Abbreviated 
    			    DKT Items 

    HX573RE:		    Number of Questions Answered Correctly if 
    			    All Seven Abbreviated DKT Items were Asked
    			    of the Participant
    
    HX575RE-HX576REC:	    Participant's Responses to DKT Items About 
    			    the Relative Nutritional Value of Various 
    			    Foods, Including Indicators for Correctness
    
    HX577RE-HX579REC:	    Participant's Responses to DKT Items About
    			    Blood Glucose Levels, Including Indicators 
    			    for Correctness
    			    
    HX580RE-HX581REC:	    Participant's Responses to DKT Items About
    			    Risk Factors and Complications Associated 
    			    with Diabetes, Including Indicators for 
    			    Correctness

hdbstat: Was the Abbreviated Diabetes Knowledge Test (DKT) Module completed by Participant alone, with help, or by proxy?

Data source: Graduate Participant or Proxy      Collected in: 2011      Mode: In person & telephone
Source variables: y_dbrand, y_x1a3, y_dbproxy1, y_dbhelp0, capiproxy, y_proxy, y_ivwloc

Frequencies
Value Label Male Female Total
. System missing - NR 2146 2019 4165
-30 NOT PART OF MOSAQ 68 116 184
-27 NOT ASKED OF PROXY 8 6 14
-2 1855 2317 4172
1 R COMPLETED ALONE 782 823 1605
2 R COMPLETED ALONE WITH SOMEONE ELSE IN THE ROOM 106 37 143
3 R RECEIVED A LITTLE HELP 23 6 29
4 R RECEIVED A LOT OF HELP 3 2 5
Note: For many cases a participant's spouse or other family member was present during the interview. This sometimes resulted in the participant relying on the other person for help in answering some or many of the questions. At the end of each module the interviewer indicated the amount of help the participant received and who provided that help. That assessment is covered by codes 1 through 5. Additionally, a code of 7 indicates that the entire interview was administered to a proxy while a code of 6 indicates that this particular module was answered by a proxy but other modules were answered by the participant.

hdbrel: Relationship of Abbreviated Diabetes Knowledge Test (DKT) Module helper or proxy to Participant.

Data source: Graduate Participant or Proxy      Collected in: 2011      Mode: In person & telephone
Source variables: hdbstat, y_dbproxy1, y_dbhelp0, y_dbhelp1, y_dbhelp2_hfn, y_dbhelp3, y_h1fn-y_h4fn, y_pfn, prxyfnam, y_p1fn-y_p5fn, y_prel, prxyrel, y_p1rel-y_p5rel

Frequencies
Value Label Male Female Total
. System missing - NR 2146 2019 4165
-30 NOT PART OF MOSAQ 68 116 184
-27 NOT ASKED OF PROXY 8 6 14
-2 2743 3177 5920
0 SPOUSE 26 7 33
30 GRANDSON 0 1 1
Note: If this module was administered via proxy or if the participant received help answering the questions in this module then we record the relationship of the proxy/helper to the participant. Although most participants relied on only one helper or proxy for the interview, some had more than one. Thus the value of the relationship code may vary across the modules.

hx570re: Summary of whether Participant was eligible to be assessed using the abbreviated Diabetes Knowledge Test (DKT).

Data source: Graduate Participant or Proxy      Collected in: 2011      Mode: In person & telephone
Source variables: hx342re, y_dbrand

Frequencies
Value Label Male Female Total
. System missing - NR 2146 2019 4165
-30 NOT PART OF MOSAQ 68 116 184
1 ELIGIBLE, IN 15% SUB-SAMPLE BUT DID NOT REPORT DIABETES DIAGNOSIS 335 403 738
2 ELIGIBLE, IN 15% SUB-SAMPLE AND ALSO REPORTED DIABETES DIAGNOSIS 97 59 156
3 ELIGIBLE, NOT IN 15% SUB-SAMPLE BUT REPORTED DIABETES DIAGNOSIS 490 412 902
4 NOT ELIGIBLE 1855 2317 4172
Note: Participants were eligible to be assessed using the abbreviated DKT if they reported being diagnosed as a diabetic (see HX342RE in the Health Module) or if they belonged to the random 15% sub-sample selected to be tested regardless of whether they reported such a diagnosis. Although the abbreviated DKT should have been administered to all eligible participants, interviewing errors may - in rare cases - have resulted in it being skipped.
Note: The following preface was used to introduce the abbreviated DKT to participants who did not report a diabetes diagnosis (code "1"): "Next we are going to ask some questions about information that is especially relevant for people with diabetes. Even though you said you did not have diabetes, it is important for us to ask these questions to some people without diabetes so we are able to compare answers." For participants who did report a diabetes diagnosis (codes "2" and "3"), the preface was simplified to read, "Next we are going to ask some questions about information related to diabetes."

hx571re: Number of questions attempted if all seven abbreviated Diabetes Knowledge Test (DKT) items were administered to Participant.

Data source: Graduate Participant or Proxy      Collected in: 2011      Mode: In person & telephone
Source variables: hx570re, hx575re, hx576re, hx577re, hx578re, hx579re, hx580re, hx581re

Frequencies
Value Label Male Female Total
. System missing - NR 2146 2019 4165
-30 NOT PART OF MOSAQ 68 116 184
-27 NOT ASKED OF PROXY 8 6 14
-2 1855 2317 4172
0 NO QUESTIONS ATTEMPTED 2 1 3
1 3 0 3
2 2 4 6
3 11 9 20
4 21 14 35
5 43 31 74
6 143 145 288
7 ALL QUESTIONS ATTEMPTED 689 664 1353
Note: If one or more of the seven questions comprising the abbreviated DKT was not asked of an eligible participant, this variable has been assigned a value of "-2". See HX570RE for more information on the participant's eligibility to be assessed. An eligible participant who was asked all seven DKT items was deemed not to have attempted a question if, rather than guessing at the answer, they indicated they did not know or refused to provide a response. For the number of questions answered correctly among participants who attempted all seven abbreviated DKT items, see HX572RE; for the number of questions answered correctly among participants who were asked all seven items (regardless of whether all items were attempted or not), see HX573RE.
Note: Only DKT items #2, 3, 5, 7, 8, 12, and 14 were asked of participants. Click here for an overview of the unabridged DKT.

hx572re: Number of questions answered correctly if Participant attempted all seven abbreviated Diabetes Knowledge Test (DKT) items.

Data source: Graduate Participant or Proxy      Collected in: 2011      Mode: In person & telephone
Source variables: hx570re, hx571re, hx575re-hx581rec

Frequencies
Value Label Male Female Total
. System missing - NR 2146 2019 4165
-30 NOT PART OF MOSAQ 68 116 184
-27 NOT ASKED OF PROXY 8 6 14
-2 2080 2521 4601
0 NO QUESTIONS ANSWERED CORRECTLY 2 1 3
1 22 16 38
2 95 67 162
3 177 132 309
4 161 167 328
5 125 132 257
6 80 115 195
7 ALL QUESTIONS ANSWERED CORRECTLY 27 34 61
Note: Participants who did not attempt all seven DKT items (see HX571RE) have been assigned values of "-2" on this variable; for a measure that also includes participants who did not attempt all seven items, see HX573RE. If one or more of the seven questions comprising the abbreviated DKT was not asked of an eligible participant, this variable has been assigned a value of "-2". See HX570RE for more information on the participant's eligibility to be assessed.
Note: Only DKT items #2, 3, 5, 7, 8, 12, and 14 were asked of participants. Click here for an overview of the unabridged DKT.

hx573re: Number of questions answered correctly if all seven abbreviated Diabetes Knowledge Test (DKT) items were administered to Participant.

Data source: Graduate Participant or Proxy      Collected in: 2011      Mode: In person & telephone
Source variables: hx570re, hx571re, hx575re-hx581rec

Frequencies
Value Label Male Female Total
. System missing - NR 2146 2019 4165
-30 NOT PART OF MOSAQ 68 116 184
-27 NOT ASKED OF PROXY 8 6 14
-2 1855 2317 4172
0 NO QUESTIONS ANSWERED CORRECTLY 7 7 14
1 41 28 69
2 164 113 277
3 240 179 419
4 206 212 418
5 144 168 312
6 85 127 212
7 ALL QUESTIONS ANSWERED CORRECTLY 27 34 61
Note: This variable treats DKT questions that the participant did not attempt (see HX571RE) as incorrectly answered; for the number of questions answered correctly among participants who attempted all seven items, see HX572RE. If one or more of the seven questions comprising the abbreviated DKT was not asked of an eligible participant, this variable has been assigned a value of "-2". See HX570RE for more information on the participant's eligibility to be assessed.
Note: Only DKT items #2, 3, 5, 7, 8, 12, and 14 were asked of participants. Click here for an overview of the unabridged DKT.

hx575re: Participant's answer to Diabetes Knowledge Test (DKT) item #2: 'Which of the following is highest in carbohydrate?'

Data source: Graduate Participant or Proxy      Collected in: 2011      Mode: In person & telephone
Source variables: hx570re, y_dktf2

Frequencies
Value Label Male Female Total
. System missing - NR 2146 2019 4165
-30 NOT PART OF MOSAQ 68 116 184
-27 NOT ASKED OF PROXY 8 6 14
-3 REFUSED 2 0 2
-2 1855 2317 4172
-1 DON'T KNOW 36 30 66
1 BAKED CHICKEN 23 21 44
2 SWISS CHEESE 110 116 226
3 BAKED POTATO 556 565 1121
4 PEANUT BUTTER 187 136 323
Note: The correct answer is "baked potato" (3). See HX575REC for the relative frequency of correct versus incorrect responses. For more information on the unabridged DKT, click here.

hx575rec: Summary of whether Participant answered Diabetes Knowledge Test (DKT) item #2 correctly: 'Which of the following is highest in carbohydrate?'

Data source: Graduate Participant or Proxy      Collected in: 2011      Mode: In person & telephone
Source variables: hx575re

Frequencies
Value Label Male Female Total
. System missing - NR 2146 2019 4165
-30 NOT PART OF MOSAQ 68 116 184
-27 NOT ASKED OF PROXY 8 6 14
-2 1893 2347 4240
0 ANSWERED INCORRECTLY 320 273 593
1 ANSWERED CORRECTLY 556 565 1121
Note: The correct answer is "baked potato." See HX575RE for the participant's answer, as well as all response options. For more information on the unabridged DKT, click here.

hx576re: Participant's answer to Diabetes Knowledge Test (DKT) item #3: 'Which of the following is highest in fat?'

Data source: Graduate Participant or Proxy      Collected in: 2011      Mode: In person & telephone
Source variables: hx570re, y_dktf3

Frequencies
Value Label Male Female Total
. System missing - NR 2146 2019 4165
-30 NOT PART OF MOSAQ 68 116 184
-27 NOT ASKED OF PROXY 8 6 14
-3 REFUSED 2 0 2
-2 1855 2317 4172
-1 DON'T KNOW 38 24 62
1 LOW FAT MILK 286 248 534
2 ORANGE JUICE 20 15 35
3 CORN 430 483 913
4 HONEY 138 98 236
Note: The correct answer is "low fat milk" (1). See HX576REC for the relative frequency of correct versus incorrect responses. For more information on the unabridged DKT, click here.

hx576rec: Summary of whether Participant answered Diabetes Knowledge Test (DKT) item #3 correctly: 'Which of the following is highest in fat?'

Data source: Graduate Participant or Proxy      Collected in: 2011      Mode: In person & telephone
Source variables: hx576re

Frequencies
Value Label Male Female Total
. System missing - NR 2146 2019 4165
-30 NOT PART OF MOSAQ 68 116 184
-27 NOT ASKED OF PROXY 8 6 14
-2 1895 2341 4236
0 ANSWERED INCORRECTLY 588 596 1184
1 ANSWERED CORRECTLY 286 248 534
Note: The correct answer is "low fat milk." See HX576RE for the participant's answer, as well as all response options. For more information on the unabridged DKT, click here.

hx577re: Participant's answer to Diabetes Knowledge Test (DKT) item #5: 'Glycosylated hemoglobin (hemoglobin A1C) is a test that is a measure of your average blood glucose level for the past ___.'

Data source: Graduate Participant or Proxy      Collected in: 2011      Mode: In person & telephone
Source variables: hx570re, y_dktf5

Frequencies
Value Label Male Female Total
. System missing - NR 2146 2019 4165
-30 NOT PART OF MOSAQ 68 116 184
-27 NOT ASKED OF PROXY 8 6 14
-3 REFUSED 2 1 3
-2 1855 2317 4172
-1 DON'T KNOW 137 143 280
1 DAY 192 178 370
2 WEEK 75 58 133
3 8-12 WEEKS 277 315 592
4 6 MONTHS 231 173 404
Note: The correct answer is "8-12 weeks" (3). See HX577REC for the relative frequency of correct versus incorrect responses. For more information on the unabridged DKT, click here.

hx577rec: Summary of whether Participant answered Diabetes Knowledge Test (DKT) item #5 correctly: 'Glycosylated hemoglobin (hemoglobin A1C) is a test that is a measure of your average blood glucose level for the past ___.'

Data source: Graduate Participant or Proxy      Collected in: 2011      Mode: In person & telephone
Source variables: hx577re

Frequencies
Value Label Male Female Total
. System missing - NR 2146 2019 4165
-30 NOT PART OF MOSAQ 68 116 184
-27 NOT ASKED OF PROXY 8 6 14
-2 1994 2461 4455
0 ANSWERED INCORRECTLY 498 409 907
1 ANSWERED CORRECTLY 277 315 592
Note: The correct answer is "8-12 weeks." See HX577RE for the participant's answer, as well as all response options. For more information on the unabridged DKT, click here.

hx578re: Participant's answer to Diabetes Knowledge Test (DKT) item #7: 'What effect does unsweetened fruit juice have on blood glucose?'

Data source: Graduate Participant or Proxy      Collected in: 2011      Mode: In person & telephone
Source variables: hx570re, y_dktf7

Frequencies
Value Label Male Female Total
. System missing - NR 2146 2019 4165
-30 NOT PART OF MOSAQ 68 116 184
-27 NOT ASKED OF PROXY 8 6 14
-3 REFUSED 2 1 3
-2 1855 2317 4172
-1 DON'T KNOW 51 43 94
1 LOWERS IT 212 128 340
2 RAISES IT 333 366 699
3 HAS NO EFFECT 316 330 646
Note: The correct answer is "raises it" (2). See HX578REC for the relative frequency of correct versus incorrect responses. For more information on the unabridged DKT, click here.

hx578rec: Summary of whether Participant answered Diabetes Knowledge Test (DKT) item #7 correctly: 'What effect does unsweetened fruit juice have on blood glucose?'

Data source: Graduate Participant or Proxy      Collected in: 2011      Mode: In person & telephone
Source variables: hx578re

Frequencies
Value Label Male Female Total
. System missing - NR 2146 2019 4165
-30 NOT PART OF MOSAQ 68 116 184
-27 NOT ASKED OF PROXY 8 6 14
-2 1908 2361 4269
0 ANSWERED INCORRECTLY 528 458 986
1 ANSWERED CORRECTLY 333 366 699
Note: The correct answer is "raises it." See HX578RE for the participant's answer, as well as all response options. For more information on the unabridged DKT, click here.

hx579re: Participant's answer to Diabetes Knowledge Test (DKT) item #8: 'Which should not be used to treat low blood glucose?'

Data source: Graduate Participant or Proxy      Collected in: 2011      Mode: In person & telephone
Source variables: hx570re, y_dktf8

Frequencies
Value Label Male Female Total
. System missing - NR 2146 2019 4165
-30 NOT PART OF MOSAQ 68 116 184
-27 NOT ASKED OF PROXY 8 6 14
-3 REFUSED 2 2 4
-2 1855 2317 4172
-1 DON'T KNOW 56 43 99
1 3 hard candies 205 121 326
2 1/2 cup orange juice 60 46 106
3 1 cup diet soft drink 337 429 766
4 1 cup skim milk 254 227 481
Note: The correct answer is "1 cup diet soft drink" (3). See HX579REC for the relative frequency of correct versus incorrect responses. For more information on the unabridged DKT, click here.

hx579rec: Summary of whether Participant answered Diabetes Knowledge Test (DKT) item #8 correctly: 'Which should not be used to treat low blood glucose?'

Data source: Graduate Participant or Proxy      Collected in: 2011      Mode: In person & telephone
Source variables: hx579re

Frequencies
Value Label Male Female Total
. System missing - NR 2146 2019 4165
-30 NOT PART OF MOSAQ 68 116 184
-27 NOT ASKED OF PROXY 8 6 14
-2 1913 2362 4275
0 ANSWERED INCORRECTLY 519 394 913
1 ANSWERED CORRECTLY 337 429 766
Note: The correct answer is "1 cup diet soft drink." See HX579RE for the participant's answer, as well as all response options. For more information on the unabridged DKT, click here.

hx580re: Participant's answer to Diabetes Knowledge Test (DKT) item #12: 'Eating foods lower in fat decreases your risk for ___.'

Data source: Graduate Participant or Proxy      Collected in: 2011      Mode: In person & telephone
Source variables: hx570re, y_dktf12

Frequencies
Value Label Male Female Total
. System missing - NR 2146 2019 4165
-30 NOT PART OF MOSAQ 68 116 184
-27 NOT ASKED OF PROXY 8 6 14
-3 REFUSED 3 1 4
-2 1855 2317 4172
-1 DON'T KNOW 30 13 43
1 Nerve Disease 10 5 15
2 Kidney Disease 36 25 61
3 Heart Disease 826 816 1642
4 Eye Disease 9 8 17
Note: The correct answer is "heart disease" (3). See HX580REC for the relative frequency of correct versus incorrect responses. For more information on the unabridged DKT, click here.

hx580rec: Summary of whether Participant answered Diabetes Knowledge Test (DKT) item #12 correctly: 'Eating foods lower in fat decreases your risk for ___.'

Data source: Graduate Participant or Proxy      Collected in: 2011      Mode: In person & telephone
Source variables: hx580re

Frequencies
Value Label Male Female Total
. System missing - NR 2146 2019 4165
-30 NOT PART OF MOSAQ 68 116 184
-27 NOT ASKED OF PROXY 8 6 14
-2 1888 2331 4219
0 ANSWERED INCORRECTLY 55 38 93
1 ANSWERED CORRECTLY 826 816 1642
Note: The correct answer is "heart disease." See HX580RE for the participant's answer, as well as all response options. For more information on the unabridged DKT, click here.

hx581re: Participant's answer to Diabetes Knowledge Test (DKT) item #14: 'Which of the following is usually not associated with diabetes?'

Data source: Graduate Participant or Proxy      Collected in: 2011      Mode: In person & telephone
Source variables: hx570re, y_dktf14

Frequencies
Value Label Male Female Total
. System missing - NR 2146 2019 4165
-30 NOT PART OF MOSAQ 68 116 184
-27 NOT ASKED OF PROXY 8 6 14
-3 REFUSED 2 1 3
-2 1855 2317 4172
-1 DON'T KNOW 15 10 25
1 Vision Problems 17 12 29
2 Kidney Problems 8 7 15
3 Nerve Problems 155 98 253
4 Lung Problems 717 740 1457
Note: The correct answer is "lung problems" (4). See HX581REC for the relative frequency of correct versus incorrect responses. For more information on the unabridged DKT, click here.

hx581rec: Summary of whether Participant answered Diabetes Knowledge Test (DKT) item #14 correctly: 'Which of the following is usually not associated with diabetes?'

Data source: Graduate Participant or Proxy      Collected in: 2011      Mode: In person & telephone
Source variables: hx581re

Frequencies
Value Label Male Female Total
. System missing - NR 2146 2019 4165
-30 NOT PART OF MOSAQ 68 116 184
-27 NOT ASKED OF PROXY 8 6 14
-2 1872 2328 4200
0 ANSWERED INCORRECTLY 180 117 297
1 ANSWERED CORRECTLY 717 740 1457
Note: The correct answer is "lung problems." See HX581RE for the participant's answer, as well as all response options. For more information on the unabridged DKT, click here.

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