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subjectkey |
GUID |
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Required |
The NDAR Global Unique Identifier (GUID) for research subject |
NDAR*
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src_subject_id |
String |
20
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Required |
Subject ID how it's defined in lab/project |
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interview_date |
Date |
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Required |
Date on which the interview/genetic test/sampling/imaging/biospecimen was completed. MM/DD/YYYY |
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interview_age |
Integer |
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Required |
Age in months at the time of the interview/test/sampling/imaging. |
0 :: 1260
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Age is rounded to chronological month. If the research participant is 15-days-old at time of interview, the appropriate value would be 0 months. If the participant is 16-days-old, the value would be 1 month.
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sex |
String |
20
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Required |
Sex of subject at birth |
M;F; O; NR
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M = Male; F = Female; O=Other; NR = Not reported
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gender |
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dwhq1 |
Integer |
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Recommended |
What is the most you have ever weighed since reaching your current height (do not count any weight gains due to medical conditions or medication)? The most I have weighed since reaching my current height is (in pounds): |
0::1000
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q20_1a |
Float |
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Recommended |
Weight lbs |
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Weight change greater than 30 percent from baseline will be flagged as an adverse event. Field should not be left blank. If missing, please use -7,-8, -9.
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dwhq2 |
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weight_dif |
Float |
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Recommended |
Please determine the difference between the most you have weighed and current weight. |
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lbs
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dwhq3 |
String |
100
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Recommended |
Please determine the difference between the most you have weighed and current weight. If this difference is 5 lbs. or more, indicate which of the three following statements describe you best: |
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A = The difference between my highest weight and my current weight is due to weight that I lost on purpose; B = The difference between my highest weight and my current weight is due to weight I lost even though I wasn't trying to; C = I'm not sure why I weigh less than I once did; 999 = question not answered (difference < 5 lbs)
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dwhq4 |
String |
100
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Recommended |
For about how long have you been at or close (within 2 lbs.) to your present weight? |
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dwhq5 |
Integer |
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Recommended |
Which of these statements best describes what has happened to your weight during the past 6 months? |
1::4
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1 = My weight has stayed about the same; 2 = I've been losing weight; 3 = I've been gaining weight; 4 = My weight has fluctuated a lot
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dwhq6 |
Integer |
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Recommended |
Are you currently on a diet |
0::1
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0 = No; 1 = Yes
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dwhq7 |
Integer |
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Recommended |
Are you currently dieting to lose weight or to avoid gaining weight? |
1::2;-999
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1 = To lose weight; 2 = To avoid gaining weight; -999 = N/A or Missing
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dwhq8 |
Integer |
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Recommended |
Have you ever been on a diet to control your weight? |
0::1
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0 = No; 1 = Yes; 999 = Question not answered
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dwhq9 |
Integer |
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Recommended |
Abot how old were you when you went on your first diet? |
0::105;-999
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Age in years; -999 = N/A or Missing
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dwhq10 |
Integer |
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Recommended |
Please estimate as best you can the number of times in your life you have dieted and lost 1-4 pounds |
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dwhq11 |
Integer |
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Recommended |
Please estimate as best you can the number of times in your life you have dieted and lost 5-10 pounds |
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dwhq12 |
Integer |
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Recommended |
Please estimate as best you can the number of times in your life you have dieted and lost 11-15 pounds |
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dwhq13 |
Integer |
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Recommended |
Please estimate as best you can the number of times in your life you have dieted and lost 16 or more pounds. |
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dwhq14 |
Integer |
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Recommended |
How old were you when you first engaged in binge eating (i.e., distinct eating episodes in which you experience a sense of loss of control over your eating and eat what you consider an excessive amount of food)? |
0::105
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Age in years
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dwhq15 |
Integer |
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Recommended |
How old were you when you first self-induced vomiting to compensate for a binge eating episode or in an effort to influence your weight or shape? |
0::105;999;-999
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Age in years; 999 = participant has never used the behavior; -999 = N/A or Missing
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dwhq16 |
Integer |
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Recommended |
How old were you when you first used laxatives to compensate for a binge eating episode or in an effort to influence your weight or shape? |
0::105;999;-999
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Age in years; 999 = participant has never used the behavior; -999 = N/A or Missing
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dwhq17 |
Integer |
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Recommended |
How old were you when you first used diuretics to compensate for a binge eating episode or in an effort to influence your weight or shape? |
0::105;999;-999
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Age in years; 999 = participant has never used the behavior; -999 = N/A or Missing
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dwhq18 |
Integer |
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Recommended |
How old were you when you first used diet pills to compensate for a binge eating episode or in an effort to influence your weight or shape? |
0::105;999;-999
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Age in years; 999 = participant has never used the behavior; -999 = N/A or Missing
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dwhq19 |
Integer |
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Recommended |
How old were you when you first used exercise to compensate for a binge eating episode or in an effort to influence your weight or shape? |
0::105;999;-999
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Age in years; 999 = participant has never used the behavior; -999 = N/A or Missing
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dwhq20 |
Integer |
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Recommended |
How old were you when you first went 8 or more consecutive hours without eating to compensate for a binge eating episode or in an effort to influence your weight or shape? |
0::105;999
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Age in years; 999 = participant has never used the behavior
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dwhq21 |
Integer |
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Recommended |
How old were you when you first used any other extreme weight loss behavior(s) to compensate for a binge eating episode or in an effort to influence your weight or shape? |
0::105;999;-999
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Age in years; 999 = participant has never used the behavior; -999 = N/A or Missing
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dwhq22 |
String |
1,000
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Recommended |
Please specify what other extreme weight loss behavior(s) you have used |
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999 = participant has never used any other extreme weight loss behavior
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