An NHANES version of three modules from the automated version of the World Health Organization Composite International Diagnostic Interview, Version 2.1 (CIDI-Auto 2.1) was administered during the face-to-face portion of the Mobile Examination Center (MEC) interview. The CIDI is a comprehensive, fully standardized interview that is used to assess mental disorders and provide diagnoses according to definitions and criteria of the tenth revision of the International Classification of Diseases (ICD-10, World Health Organization 1992, 1993) and the fourth edition of the American Psychiatric Association’s Diagnostic and Statistical Manual of Mental Disorders (DSM-IV, 1994). The CIDI is especially suitable for large epidemiological studies because it can be administered by lay interviewers, does not require outside informants or medical records, and does not assume the presence of a current disorder. It is used in both clinical and research settings.
The NHANES CIDI, developed as a computer-administered version, consisted of three diagnostic modules that addressed diagnoses present in the past 12 months. These modules were Panic Disorder, Generalized Anxiety Disorder, and Depressive Disorders. Additional questions were added to measure both the quality and quantity of impairment, and to assess risk factors such as physical illness and life events. These additional questions were placed at the end of each module. The modules were administered in either English or Spanish by a trained interviewer who followed guidelines instituted by the CIDI Training Centers. These guidelines are included in the MEC Interviewer Manual, Chapter 6.
The instrument was administered to a half-sample of examination participants, ages 20 - 39 years. Proxies were ineligible, as were persons who required interpreters (i.e., non-English or Spanish speakers).
MEC private face-to-face interview.
For more information, the Interviewer Procedure Manuals, Exam Manuals, and Survey Questionnaires can be found on the NHANES website.
Questionnaire interview responses were entered by the interviewer on a desktop computer and then uploaded to the NHANES computerized database in the same manner as other sections of the MEC interview. In this public release data file, variables are included for responses to all questions to the instruments except for checkpoints and questions requiring text entries. All of the questions from the original instrument were renamed to be consistent with NHANES naming conventions. The coding patterns for the traditional CIDI response categories (1 = no, 5 = yes) were also modified. Both the original question names and the new NHANES names can be found in the corresponding codebook. NHANES CIDI modules can be distinguished by the pre-fix for the variable names as follows:
CIQPAN: Generalized Panic Disorder
CIQGAD: Generalized Anxiety Disorder
CIQDEP: Major Depressive Disorders
Special examination sample weights were developed for the half-sample that was eligible for the interview. Because of small samples sizes, it is recommended that the data from the 2-year files (1999-2000, 2001-2002, and 2003-2004) be combined and that 6-year weights be used for all analyses. For an estimate for the 6-years 1999-2004, a 6-year weight variable can be created by taking 2/3 of the 4 year weight for each sampled person in 1999-2002 and 1/3 of the 2 year weight for each sampled person in 2003-04. For more information on weighting, please see the NHANES analytic guidelines.
Abbreviations frequently found in the codebooks and on variables labels:
WTA = worried, tense, or anxious
SED = sad, empty, or depressed
MDA = medication, drugs or alcohol
The NHANES CIDI questions were developed in accordance with the ICD-10 and DSM-IV criteria for three diagnoses. As part of the final data preparation effort, responses to the questions were evaluated using a computer algorithm, first to assess each criterion, and then to combine criteria into diagnoses. The diagnostic algorithms were constructed criterion by criterion, and all criteria had to be met for a diagnosis to be positive. If all of the criteria for a diagnosis were positive, the diagnosis was considered to be present for the past 12 months. The algorithms, written in SAS code, are found in the CIDI Appendices.
The “diagnostic score” variables are found at the end of each module. They are named as follows: CIDPSCOR for Panic, CIDGSCOR for GAD, and CIDGSCOR for Depression. A value of “1” indicates a positive diagnosis, and a value of “5” indicates a negative diagnosis.
Please refer to the Analytic Guidelines for further details on the use of sample weights and other analytic issues at https://wwwn.cdc.gov/nchs/nhanes/analyticguidelines.aspx.
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
5216.6934328 to 300649.07751 | Range of Values | 712 | 712 | |
. | Missing | 138 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
0 | Panic, GAD, Depression | 373 | 373 | |
1 | Depression, Panic, GAD | 321 | 694 | |
. | Missing | 156 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Yes | 110 | 110 | |
2 | No | 583 | 693 | CIQG06 |
7 | Refused | 0 | 693 | CIQG06 |
9 | Don't know | 0 | 693 | CIQG06 |
. | Missing | 157 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Yes | 32 | 32 | |
2 | No | 79 | 111 | |
7 | Refused | 0 | 111 | |
9 | Don't know | 0 | 111 | |
. | Missing | 739 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 to 12 | Range of Values | 111 | 111 | |
77 | Refused | 0 | 111 | |
99 | Don't know | 0 | 111 | |
. | Missing | 739 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Every Day | 9 | 9 | |
2 | Nearly Every Day | 18 | 27 | |
3 | Most Days | 39 | 66 | |
4 | About Half the Days | 29 | 95 | |
5 | Less than Half the Days | 16 | 111 | CIDGSCOR |
7 | Refused | 0 | 111 | CIQG06 |
9 | Don't know | 0 | 111 | CIQG06 |
. | Missing | 739 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | All Day Long | 4 | 4 | CIQG12 |
2 | Most of the Day | 34 | 38 | CIQG12 |
3 | About Half | 37 | 75 | CIQG12 |
4 | Less than Half | 20 | 95 | CIQG12 |
7 | Refused | 0 | 95 | CIQG12 |
9 | Don't know | 0 | 95 | CIQG12 |
. | Missing | 755 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Yes | 35 | 35 | |
2 | No | 546 | 581 | CIDGSCOR |
7 | Refused | 0 | 581 | CIDGSCOR |
9 | Don't know | 2 | 583 | CIDGSCOR |
. | Missing | 267 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Yes | 2 | 2 | |
2 | No | 33 | 35 | |
7 | Refused | 0 | 35 | |
9 | Don't know | 0 | 35 | |
. | Missing | 815 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
0 to 6 | Range of Values | 35 | 35 | |
77 | Refused | 0 | 35 | |
99 | Don't know | 0 | 35 | |
. | Missing | 815 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Every Day | 0 | 0 | |
2 | Nearly Every Day | 4 | 4 | |
3 | Most Days | 8 | 12 | |
4 | About Half the Days | 5 | 17 | |
5 | Less than Half the Days | 14 | 31 | CIDGSCOR |
7 | Refused | 0 | 31 | CIDGSCOR |
9 | Don't know | 0 | 31 | CIDGSCOR |
. | Missing | 819 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | All Day Long | 2 | 2 | |
2 | Most of the Day | 6 | 8 | |
3 | About Half | 6 | 14 | |
4 | Less than Half | 3 | 17 | |
7 | Refused | 0 | 17 | |
9 | Don't know | 0 | 17 | |
. | Missing | 833 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Yes | 8 | 8 | CIDGSCOR |
2 | No | 104 | 112 | |
. | Missing | 738 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Worried about one thing | 29 | 29 | CIDGSCOR |
2 | Multiple worries | 75 | 104 | |
. | Missing | 746 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Yes | 34 | 34 | |
2 | No | 39 | 73 | |
7 | Refused | 0 | 73 | |
9 | Don't know | 2 | 75 | |
. | Missing | 775 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Often | 22 | 22 | |
2 | Sometimes | 32 | 54 | |
3 | Rarely | 12 | 66 | |
4 | Never | 9 | 75 | |
7 | Refused | 0 | 75 | |
9 | Don't know | 0 | 75 | |
. | Missing | 775 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Often | 21 | 21 | |
2 | Sometimes | 27 | 48 | |
3 | Rarely | 19 | 67 | |
4 | Never | 8 | 75 | |
7 | Refused | 0 | 75 | |
9 | Don't know | 0 | 75 | |
. | Missing | 775 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Yes | 55 | 55 | |
2 | No | 20 | 75 | |
7 | Refused | 0 | 75 | |
9 | Don't know | 0 | 75 | |
. | Missing | 775 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Yes | 56 | 56 | |
2 | No | 19 | 75 | |
7 | Refused | 0 | 75 | |
9 | Don't know | 0 | 75 | |
. | Missing | 775 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Yes | 54 | 54 | |
2 | No | 21 | 75 | |
7 | Refused | 0 | 75 | |
9 | Don't know | 0 | 75 | |
. | Missing | 775 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Yes | 60 | 60 | |
2 | No | 15 | 75 | |
7 | Refused | 0 | 75 | |
9 | Don't know | 0 | 75 | |
. | Missing | 775 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Yes | 50 | 50 | |
2 | No | 25 | 75 | |
7 | Refused | 0 | 75 | |
9 | Don't know | 0 | 75 | |
. | Missing | 775 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Yes | 57 | 57 | |
2 | No | 18 | 75 | |
7 | Refused | 0 | 75 | |
9 | Don't know | 0 | 75 | |
. | Missing | 775 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Yes | 39 | 39 | |
2 | No | 36 | 75 | |
7 | Refused | 0 | 75 | |
9 | Don't know | 0 | 75 | |
. | Missing | 775 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Yes | 26 | 26 | CIQGPHA |
2 | No | 49 | 75 | |
7 | Refused | 0 | 75 | |
9 | Don't know | 0 | 75 | |
. | Missing | 775 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Yes | 4 | 4 | CIQGPD |
2 | No | 45 | 49 | |
7 | Refused | 0 | 49 | |
9 | Don't know | 0 | 49 | |
. | Missing | 801 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Yes | 2 | 2 | CIQGPD |
2 | No | 43 | 45 | |
7 | Refused | 0 | 45 | |
9 | Don't know | 0 | 45 | |
. | Missing | 805 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Yes | 13 | 13 | |
2 | No | 30 | 43 | CIDGPRB |
7 | Refused | 0 | 43 | CIDGPRB |
9 | Don't know | 0 | 43 | CIDGPRB |
. | Missing | 807 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Yes | 3 | 3 | CIQGPN |
2 | No | 16 | 19 | |
7 | Refused | 0 | 19 | |
9 | Don't know | 0 | 19 | |
. | Missing | 831 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Yes | 3 | 3 | |
2 | No | 13 | 16 | CIDGPRB |
7 | Refused | 0 | 16 | CIDGPRB |
9 | Don't know | 0 | 16 | CIDGPRB |
. | Missing | 834 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Yes | 2 | 2 | CIDGPRB |
2 | No | 1 | 3 | CIDGPRB |
7 | Refused | 0 | 3 | CIDGPRB |
9 | Don't know | 0 | 3 | CIDGPRB |
. | Missing | 847 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Doctor said nerves causing WTA | 1 | 1 | |
77 | Refused | 1 | 2 | |
99 | Don't know | 2 | 4 | |
. | Missing | 846 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
2 | Doctor said stress causing WTA | 1 | 1 | |
. | Missing | 849 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
3 | Doctor said anxiety causing WTA | 5 | 5 | |
. | Missing | 845 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
4 | Doctor said depression causing WTA | 7 | 7 | |
. | Missing | 843 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
5 | Doctor said mental illness causing WTA | 3 | 3 | |
. | Missing | 847 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
6 | Doctor said medication causing WTA | 1 | 1 | |
. | Missing | 849 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
7 | Doctor said drugs causing WTA | 0 | 0 | |
. | Missing | 850 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
8 | Doctor said alcohol causing WTA | 0 | 0 | |
. | Missing | 850 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
9 | Doctor said physical illness causing WTA | 1 | 1 | |
. | Missing | 849 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
10 | Doctor said physical injury causing WTA | 3 | 3 | |
. | Missing | 847 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
11 | Doc gave no definite diagnosis for WTA | 5 | 5 | |
. | Missing | 845 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Yes | 0 | 0 | CIDGPRB |
2 | No | 0 | 0 | |
7 | Refused | 0 | 0 | |
9 | Don't know | 0 | 0 | |
. | Missing | 850 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Yes | 0 | 0 | CIDGPRB |
2 | No | 0 | 0 | CIDGPRB |
7 | Refused | 0 | 0 | CIDGPRB |
9 | Don't know | 0 | 0 | CIDGPRB |
. | Missing | 850 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Nothing abnormal | 6 | 6 | CIDGPRB |
2 | No examination | 2 | 8 | CIDGPRB |
5 | Something abnormal | 0 | 8 | |
7 | Refused | 0 | 8 | CIDGPRB |
9 | Don't know | 0 | 8 | CIDGPRB |
. | Missing | 842 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Yes | 2 | 2 | CIQGPN |
2 | No | 4 | 6 | |
7 | Refused | 0 | 6 | |
9 | Don't know | 0 | 6 | |
. | Missing | 844 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Yes | 0 | 0 | |
2 | No | 4 | 4 | |
7 | Refused | 0 | 4 | |
9 | Don't know | 0 | 4 | |
. | Missing | 846 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | No Problem | 0 | 0 | |
2 | Not clinically significant | 29 | 29 | |
3 | Medication, Drugs, or Alcohol | 2 | 31 | |
4 | Physical cause | 2 | 33 | |
5 | Psychiatric Symptom | 41 | 74 | |
. | Missing | 776 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Yes | 53 | 53 | |
2 | No | 17 | 70 | CIQG21 |
7 | Refused | 0 | 70 | CIQG21 |
9 | Don't know | 5 | 75 | CIQG21 |
. | Missing | 775 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
7 to 39 | Range of Values | 53 | 53 | |
77 | Refused | 0 | 53 | |
99 | Don't know | 0 | 53 | |
. | Missing | 797 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
9 to 39 | Range of Values | 19 | 19 | |
77 | Refused | 0 | 19 | |
99 | Don't know | 3 | 22 | |
. | Missing | 828 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
9 to 39 | Range of Values | 19 | 19 | |
77 | Refused | 0 | 19 | |
99 | Don't know | 3 | 22 | |
. | Missing | 828 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Past Month | 24 | 24 | |
2 | Past 6 Months | 30 | 54 | |
3 | Over 6 Months | 21 | 75 | |
7 | Refused | 0 | 75 | |
9 | Don't know | 0 | 75 | |
. | Missing | 775 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Very upset | 15 | 15 | |
2 | Somewhat Upset | 33 | 48 | |
3 | Not very upset | 17 | 65 | |
4 | Not at all upset | 10 | 75 | |
7 | Refused | 0 | 75 | |
9 | Don't know | 0 | 75 | |
. | Missing | 775 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | A lot | 15 | 15 | |
2 | Some | 29 | 44 | |
3 | A little | 18 | 62 | |
4 | Not at all | 13 | 75 | |
7 | Refused | 0 | 75 | |
9 | Don't know | 0 | 75 | |
. | Missing | 775 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
0 to 260 | Range of Values | 62 | 62 | |
777 | Refused | 0 | 62 | |
999 | Don't know | 0 | 62 | |
. | Missing | 788 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Yes | 1 | 1 | CIQG29 |
2 | No | 1 | 2 | CIQG29 |
7 | Refused | 0 | 2 | CIQG29 |
9 | Don't know | 0 | 2 | CIQG29 |
. | Missing | 848 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
0 to 20 | Range of Values | 21 | 21 | |
77 | Refused | 0 | 21 | |
99 | Don't know | 0 | 21 | |
. | Missing | 829 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
0 to 365 | Range of Values | 62 | 62 | |
777 | Refused | 0 | 62 | |
999 | Don't know | 0 | 62 | |
. | Missing | 788 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
0 to 100 | Range of Values | 39 | 39 | |
777 | Refused | 0 | 39 | |
999 | Don't know | 0 | 39 | |
. | Missing | 811 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Yes | 0 | 0 | CIQG36 |
2 | No | 0 | 0 | CIQG36 |
7 | Refused | 0 | 0 | CIQG36 |
9 | Don't know | 0 | 0 | CIQG36 |
. | Missing | 850 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
0 to 12 | Range of Values | 20 | 20 | |
77 | Refused | 0 | 20 | |
99 | Don't know | 0 | 20 | |
. | Missing | 830 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
0 to 200 | Range of Values | 60 | 60 | |
777 | Refused | 0 | 60 | |
999 | Don't know | 0 | 60 | |
. | Missing | 790 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Yes | 0 | 0 | CIQG36 |
2 | No | 0 | 0 | CIQG36 |
7 | Refused | 0 | 0 | CIQG36 |
9 | Don't know | 0 | 0 | CIQG36 |
. | Missing | 850 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
0 to 20 | Range of Values | 12 | 12 | |
77 | Refused | 0 | 12 | |
99 | Don't know | 0 | 12 | |
. | Missing | 838 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
0 to 365 | Range of Values | 62 | 62 | |
777 | Refused | 0 | 62 | |
999 | Don't know | 0 | 62 | |
. | Missing | 788 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Yes | 0 | 0 | CIDGSCOR |
2 | No | 0 | 0 | CIDGSCOR |
7 | Refused | 0 | 0 | CIDGSCOR |
9 | Don't know | 0 | 0 | CIDGSCOR |
. | Missing | 850 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
0 to 28 | Range of Values | 40 | 40 | |
77 | Refused | 0 | 40 | |
99 | Don't know | 0 | 40 | |
. | Missing | 810 | 850 |
Code or Value | Value Description | Count | Cumulative | Skip to Item |
---|---|---|---|---|
1 | Positive Diagnosis | 12 | 12 | |
5 | Negative Diagnosis | 681 | 693 | |
. | Missing | 157 | 850 |