Table of Contents

Component Description

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.

Eligible Sample

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).

Interview Setting and Mode of Administration

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.

Data Processing and Editing

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

Analytic Notes

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.

Codebook and Frequencies

SEQN - Respondent sequence number

Variable Name:
SEQN
SAS Label:
Respondent sequence number
English Text:
Respondent sequence number.
Target:
Both males and females 20 YEARS - 39 YEARS

WTSCI2YR - CIDI Subsample 2 year MEC Weight

Variable Name:
WTSCI2YR
SAS Label:
CIDI Subsample 2 year MEC Weight
English Text:
CIDI Subsample 2 year MEC Weight
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
3141.6834177 to 398125.62182 Range of Values 827 827
. Missing 101 928

WTSCI4YR - CIDI Subsample 4 Year MEC Weight

Variable Name:
WTSCI4YR
SAS Label:
CIDI Subsample 4 Year MEC Weight
English Text:
CIDI Subsample 4 Year MEC Weight
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1616.579907 to 231377.0998 Range of Values 827 827
. Missing 101 928

CIAORDER - Order in which CIDI modules are asked

Variable Name:
CIAORDER
SAS Label:
Order in which CIDI modules are asked
English Text:
Order in which CIDI modules are asked
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 Panic, GAD, Depression 407 407
1 Depression, Panic, GAD 407 814
. Missing 114 928

CIQG01 - Month worried, tense, anxious(WTA)?

Variable Name:
CIQG01
SAS Label:
Month worried, tense, anxious(WTA)?
English Text:
The next questions are about longer periods of feeling worried, tense, or anxious. In the past 12 months, did you have a period of a month or more when most days you felt worried or tense or anxious about everyday problems such as work or family?
English Instructions:
(Collection name = D63)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 124 124
2 No 689 813 CIQG06
7 Refused 0 813 CIQG06
9 Don't know 0 813 CIQG06
. Missing 115 928

CIQG02 - Did period last six months?

Variable Name:
CIQG02
SAS Label:
Did period last six months?
English Text:
Did that period go on for at least six months?
English Instructions:
(Collection name = D63_1)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 41 41
2 No 83 124
7 Refused 0 124
9 Don't know 0 124
. Missing 804 928

CIQG03 - No. months worried, tense, anxious?

Variable Name:
CIQG03
SAS Label:
No. months worried, tense, anxious?
English Text:
How many months out of the last 12 did you feel worried or tense or anxious most days?
English Instructions:
NUMBER OF MONTHS (Collection name = D63_2)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 12 Range of Values 123 123
77 Refused 0 123
99 Don't know 1 124
. Missing 804 928

CIQG04 - WTA frequency

Variable Name:
CIQG04
SAS Label:
WTA frequency
English Text:
During (that/those) month(s), were you worried, tense, or anxious every day, nearly every day, most days, about half the days, or less than half the days?
English Instructions:
(Collection name = D63_3)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Every Day 14 14
2 Nearly Every Day 30 44
3 Most Days 26 70
4 About Half the Days 23 93
5 Less than Half the Days 31 124 CIDGSCOR
7 Refused 0 124 CIQG06
9 Don't know 0 124 CIQG06
. Missing 804 928

CIQG05 - WTA duration

Variable Name:
CIQG05
SAS Label:
WTA duration
English Text:
And on the days you worried or were tense or anxious, did you usually feel that way all day long, most of the day, about half the day, or less than half the day?
English Instructions:
(IF "It varies," PROBE: What about on average?) (Collection name = D63_4)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 All Day Long 13 13 CIQG12
2 Most of the Day 32 45 CIQG12
3 About Half 32 77 CIQG12
4 Less than Half 16 93 CIQG12
7 Refused 0 93 CIQG12
9 Don't know 0 93 CIQG12
. Missing 835 928

CIQG06 - WTA a lot more than most?

Variable Name:
CIQG06
SAS Label:
WTA a lot more than most?
English Text:
People differ a lot in how much they worry about things. (READ THE NEXT SENTENCE SLOWLY.) In the past 12 months, did you have a period when most days you were a lot more worried or tense or anxious than most people would be in your same situation?
English Instructions:
(Collection name = D63A)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 38 38
2 No 648 686 CIDGSCOR
7 Refused 0 686 CIDGSCOR
9 Don't know 3 689 CIDGSCOR
. Missing 239 928

CIQG07 - Did period last six months?

Variable Name:
CIQG07
SAS Label:
Did period last six months?
English Text:
Did that period go on for at least six months?
English Instructions:
(Collection name = D63A_1)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 2 2
2 No 36 38
7 Refused 0 38
9 Don't know 0 38
. Missing 890 928

CIQG08 - No. months worried, tense, anxious?

Variable Name:
CIQG08
SAS Label:
No. months worried, tense, anxious?
English Text:
How many months out of the last 12 did you feel worried or tense or anxious most days?
English Instructions:
NUMBER OF MONTHS (Collection name = D63A_2)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 8 Range of Values 38 38
77 Refused 0 38
99 Don't know 0 38
. Missing 890 928

CIQG09 - WTA frequency

Variable Name:
CIQG09
SAS Label:
WTA frequency
English Text:
During (that/those) month(s), were you worried, tense, or anxious every day, nearly every day, most days, about half the days, or less than half the days?
English Instructions:
(Collection name = D63A_3)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Every Day 4 4
2 Nearly Every Day 3 7
3 Most Days 8 15
4 About Half the Days 9 24
5 Less than Half the Days 9 33 CIDGSCOR
7 Refused 0 33 CIDGSCOR
9 Don't know 0 33 CIDGSCOR
. Missing 895 928

CIQG10 - WTA duration

Variable Name:
CIQG10
SAS Label:
WTA duration
English Text:
And on the days you worried or were tense or anxious, did you usually feel that way all day long, most of the day, about half the day, or less than half the day?
English Instructions:
(IF "It varies," PROBE: What about on average?) (Collection name = D63A_4)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 All Day Long 2 2
2 Most of the Day 5 7
3 About Half 9 16
4 Less than Half 8 24
7 Refused 0 24
9 Don't know 0 24
. Missing 904 928

CIQG12 - Did R worry about health/drug use?

Variable Name:
CIQG12
SAS Label:
Did R worry about health/drug use?
English Text:
Did R worry about health/drug use?
English Instructions:
INTERVIEWER QUERY: DID R REPORT EXCLUSIVELY WORRYING ABOUT HIS/HER OWN PHYSICAL HEALTH OR MENTAL HEALTH OR WEIGHT OR DRUG USE? (Collection name = D64D_1)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 11 11 CIDGSCOR
2 No 106 117
. Missing 811 928

CIQG13 - Did R have multiple worries?

Variable Name:
CIQG13
SAS Label:
Did R have multiple worries?
English Text:
Did R have multiple worries?
English Instructions:
INTERVIEWER QUERY: DID R REPORT EXCLUSIVELY WORRYING ABOUT ONE THING? OR DID R HAVE MULTIPLE WORRIES? (Collection name = D64D_2)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Worried about one thing 26 26 CIDGSCOR
2 Multiple worries 80 106
. Missing 822 928

CIQG14 - Do you think worry excessive?

Variable Name:
CIQG14
SAS Label:
Do you think worry excessive?
English Text:
Do you think your worry was excessive; that is, much stronger than it really should be in your situation?
English Instructions:
(Collection name = D64A)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 45 45
2 No 35 80
7 Refused 0 80
9 Don't know 0 80
. Missing 848 928

CIQG15 - How often difficult control worry?

Variable Name:
CIQG15
SAS Label:
How often difficult control worry?
English Text:
How often did you find it difficult to control your worry -- often, sometimes, rarely, or never?
English Instructions:
(Collection name = D64C)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Often 27 27
2 Sometimes 36 63
3 Rarely 10 73
4 Never 7 80
7 Refused 0 80
9 Don't know 0 80
. Missing 848 928

CIQG16 - How often worry so strong?

Variable Name:
CIQG16
SAS Label:
How often worry so strong?
English Text:
How often was your worry so strong that you couldn't put it out of your mind no matter how hard you tried -- often, sometimes, rarely, or never?
English Instructions:
(Collection name = D64C_1)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Often 25 25
2 Sometimes 38 63
3 Rarely 14 77
4 Never 3 80
7 Refused 0 80
9 Don't know 0 80
. Missing 848 928

CIQG17A - Handcard: often restless?

Variable Name:
CIQG17A
SAS Label:
Handcard: often restless?
English Text:
Now look at this card. This is a list of problems some people have during periods of feeling worried, tense or anxious. In the past 12 months, during your period of worry, were you often restless? (feeling restless)
English Instructions:
IVR: HAND CARD B TO R. ANYONE WHO HAS ZERO YES RESPONSES OUT OF THE PRIOR 7 QUESTIONS SHOULD BE SKIPPED TO THE NEXT SECTION. REMEMBER TO INCLUDE THE FIRST QUESTION ABOUT BEING RESTLESS IN YOUR COUNT. (Collection name = D65_1)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 63 63
2 No 17 80
7 Refused 0 80
9 Don't know 0 80
. Missing 848 928

CIQG17B - Handcard: often keyed up?

Variable Name:
CIQG17B
SAS Label:
Handcard: often keyed up?
English Text:
Now look at this card. This is a list of problems some people have during periods of feeling worried, tense or anxious. In the past 12 months, during your period of worry, were you often restless? (feeling restless)
English Instructions:
IVR: HAND CARD B TO R. ANYONE WHO HAS ZERO YES RESPONSES OUT OF THE PRIOR 7 QUESTIONS SHOULD BE SKIPPED TO THE NEXT SECTION. REMEMBER TO INCLUDE THE FIRST QUESTION ABOUT BEING RESTLESS IN YOUR COUNT. (Collection name = D65_2)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 54 54
2 No 26 80
7 Refused 0 80
9 Don't know 0 80
. Missing 848 928

CIQG17C - Handcard: more tired than usual?

Variable Name:
CIQG17C
SAS Label:
Handcard: more tired than usual?
English Text:
Now look at this card. This is a list of problems some people have during periods of feeling worried, tense or anxious. In the past 12 months, during your period of worry, were you often restless? (feeling restless)
English Instructions:
IVR: HAND CARD B TO R. ANYONE WHO HAS ZERO YES RESPONSES OUT OF THE PRIOR 7 QUESTIONS SHOULD BE SKIPPED TO THE NEXT SECTION. REMEMBER TO INCLUDE THE FIRST QUESTION ABOUT BEING RESTLESS IN YOUR COUNT. (Collection name = D65_3)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 53 53
2 No 27 80
7 Refused 0 80
9 Don't know 0 80
. Missing 848 928

CIQG17D - Handcard: more irritable?

Variable Name:
CIQG17D
SAS Label:
Handcard: more irritable?
English Text:
Now look at this card. This is a list of problems some people have during periods of feeling worried, tense or anxious. In the past 12 months, during your period of worry, were you often restless? (feeling restless)
English Instructions:
IVR: HAND CARD B TO R. ANYONE WHO HAS ZERO YES RESPONSES OUT OF THE PRIOR 7 QUESTIONS SHOULD BE SKIPPED TO THE NEXT SECTION. REMEMBER TO INCLUDE THE FIRST QUESTION ABOUT BEING RESTLESS IN YOUR COUNT. (Collection name = D65_5)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 69 69
2 No 10 79
7 Refused 0 79
9 Don't know 1 80
. Missing 848 928

CIQG17E - Handcard: trouble sleeping?

Variable Name:
CIQG17E
SAS Label:
Handcard: trouble sleeping?
English Text:
Now look at this card. This is a list of problems some people have during periods of feeling worried, tense or anxious. In the past 12 months, during your period of worry, were you often restless? (feeling restless)
English Instructions:
IVR: HAND CARD B TO R. ANYONE WHO HAS ZERO YES RESPONSES OUT OF THE PRIOR 7 QUESTIONS SHOULD BE SKIPPED TO THE NEXT SECTION. REMEMBER TO INCLUDE THE FIRST QUESTION ABOUT BEING RESTLESS IN YOUR COUNT. (Collection name = D65_7)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 67 67
2 No 13 80
7 Refused 0 80
9 Don't know 0 80
. Missing 848 928

CIQG17F - Handcard: trouble keeping mind on?

Variable Name:
CIQG17F
SAS Label:
Handcard: trouble keeping mind on?
English Text:
Now look at this card. This is a list of problems some people have during periods of feeling worried, tense or anxious. In the past 12 months, during your period of worry, were you often restless? (feeling restless)
English Instructions:
IVR: HAND CARD B TO R. ANYONE WHO HAS ZERO YES RESPONSES OUT OF THE PRIOR 7 QUESTIONS SHOULD BE SKIPPED TO THE NEXT SECTION. REMEMBER TO INCLUDE THE FIRST QUESTION ABOUT BEING RESTLESS IN YOUR COUNT. (Collection name = D65_4)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 51 51
2 No 29 80
7 Refused 0 80
9 Don't know 0 80
. Missing 848 928

CIQG17G - Handcard: tense, sore, ach muscles?

Variable Name:
CIQG17G
SAS Label:
Handcard: tense, sore, ach muscles?
English Text:
Now look at this card. This is a list of problems some people have during periods of feeling worried, tense or anxious. In the past 12 months, during your period of worry, were you often restless? (feeling restless)
English Instructions:
IVR: HAND CARD B TO R. ANYONE WHO HAS ZERO YES RESPONSES OUT OF THE PRIOR 7 QUESTIONS SHOULD BE SKIPPED TO THE NEXT SECTION. REMEMBER TO INCLUDE THE FIRST QUESTION ABOUT BEING RESTLESS IN YOUR COUNT. (Collection name = D65_6)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 50 50
2 No 30 80
7 Refused 0 80
9 Don't know 0 80
. Missing 848 928

CIQG18 - Did you tell MD about WTA?

Variable Name:
CIQG18
SAS Label:
Did you tell MD about WTA?
English Text:
In the past 12 months did you tell a doctor about feeling worried, tense, or anxious when you also had some of the problems on the list?
English Instructions:
(Collection name = D66)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 36 36 CIQGPHA
2 No 43 79
7 Refused 0 79
9 Don't know 0 79
. Missing 849 928

CIQGPA - Did you tell other prof about WTA?

Variable Name:
CIQGPA
SAS Label:
Did you tell other prof about WTA?
English Text:
Did you tell other professional about being, worried, tense, or anxious?
English Instructions:
(Collection name = D66PA1)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 8 8 CIQGPD
2 No 35 43
7 Refused 0 43
9 Don't know 0 43
. Missing 885 928

CIQGPB - Did you take medication for WTA?

Variable Name:
CIQGPB
SAS Label:
Did you take medication for WTA?
English Text:
Did you take medication for being, worried, tense, or anxious?
English Instructions:
(Collection name = D66PA2)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 2 2 CIQGPD
2 No 33 35
7 Refused 0 35
9 Don't know 0 35
. Missing 893 928

CIQGPC - Did WTA interfere with life?

Variable Name:
CIQGPC
SAS Label:
Did WTA interfere with life?
English Text:
Did being, worried, tense, or anxious interfere with life?
English Instructions:
(Collection name = D66PA3)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 5 5
2 No 28 33 CIDGPRB
7 Refused 0 33 CIDGPRB
9 Don't know 0 33 CIDGPRB
. Missing 895 928

CIQGPD - Was WTA result of phys illness?

Variable Name:
CIQGPD
SAS Label:
Was WTA result of phys illness?
English Text:
Was being, worried, tense, or anxious result of physical illness?
English Instructions:
(Collection name = D66PB1)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 1 1 CIQGPN
2 No 14 15
7 Refused 0 15
9 Don't know 0 15
. Missing 913 928

CIQGPE - Was WTA result of MDA?

Variable Name:
CIQGPE
SAS Label:
Was WTA result of MDA?
English Text:
Was being, worried, tense, or anxious result of medicine, drugs, or alcohol?
English Instructions:
(Collection name = D66PC1)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 1 1
2 No 13 14 CIDGPRB
7 Refused 0 14 CIDGPRB
9 Don't know 0 14 CIDGPRB
. Missing 914 928

CIQGPF - Was WTA always result MDA?

Variable Name:
CIQGPF
SAS Label:
Was WTA always result MDA?
English Text:
Was being, worried, tense, or anxious always result of medicine, drugs, or alcohol?
English Instructions:
(Collection name = D66PC2)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 0 0 CIDGPRB
2 No 1 1 CIDGPRB
7 Refused 0 1 CIDGPRB
9 Don't know 0 1 CIDGPRB
. Missing 927 928

CIQGPHA - Doctor said nerves causing WTA

Variable Name:
CIQGPHA
SAS Label:
Doctor said nerves causing WTA
English Text:
Doctor said nerves causing being, worried, tense, or anxious
English Instructions:
(Collection name = D66PD1)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Doctor said nerves causing WTA 3 3
77 Refused 0 3
99 Don't know 0 3
. Missing 925 928

CIQGPHB - Doctor said stress causing WTA

Variable Name:
CIQGPHB
SAS Label:
Doctor said stress causing WTA
English Text:
Doctor said stress causing being, worried, tense, or anxious
English Instructions:
(Collection name = D66PD1)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
2 Doctor said stress causing WTA 12 12
. Missing 916 928

CIQGPHC - Doctor said anxiety causing WTA

Variable Name:
CIQGPHC
SAS Label:
Doctor said anxiety causing WTA
English Text:
Doctor said anxiety causing being, worried, tense, or anxious
English Instructions:
(Collection name = D66PD1)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
3 Doctor said anxiety causing WTA 8 8
. Missing 920 928

CIQGPHD - Doctor said depression causing WTA

Variable Name:
CIQGPHD
SAS Label:
Doctor said depression causing WTA
English Text:
Doctor said depression causing being, worried, tense, or anxious
English Instructions:
(Collection name = D66PD1)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
4 Doctor said depression causing WTA 20 20
. Missing 908 928

CIQGPHE - Doctor said mental illness causing WTA

Variable Name:
CIQGPHE
SAS Label:
Doctor said mental illness causing WTA
English Text:
Doctor said mental illness causing being, worried, tense, or anxious
English Instructions:
(Collection name = D66PD1)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
5 Doctor said mental illness causing WTA 2 2
. Missing 926 928

CIQGPHF - Doctor said medication causing WTA

Variable Name:
CIQGPHF
SAS Label:
Doctor said medication causing WTA
English Text:
Doctor said medication causing being, worried, tense, or anxious
English Instructions:
(Collection name = D66PD1)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
6 Doctor said medication causing WTA 2 2
. Missing 926 928

CIQGPHG - Doctor said drugs causing WTA

Variable Name:
CIQGPHG
SAS Label:
Doctor said drugs causing WTA
English Text:
Doctor said drugs causing being, worried, tense, or anxious
English Instructions:
(Collection name = D66PD1)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
7 Doctor said drugs causing WTA 0 0
. Missing 928 928

CIQGPHH - Doctor said alcohol causing WTA

Variable Name:
CIQGPHH
SAS Label:
Doctor said alcohol causing WTA
English Text:
Doctor said alcohol causing being, worried, tense, or anxious
English Instructions:
(Collection name = D66PD1)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
8 Doctor said alcohol causing WTA 1 1
. Missing 927 928

CIQGPHI - Doctor said physical illness causing WTA

Variable Name:
CIQGPHI
SAS Label:
Doctor said physical illness causing WTA
English Text:
Doctor said physical illness causing being, worried, tense, or anxious
English Instructions:
(Collection name = D66PD1)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
9 Doctor said physical illness causing WTA 2 2
. Missing 926 928

CIQGPHJ - Doctor said physical injury causing WTA

Variable Name:
CIQGPHJ
SAS Label:
Doctor said physical injury causing WTA
English Text:
Doctor said physical injury causing being, worried, tense, or anxious
English Instructions:
(Collection name = D66PD1)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
10 Doctor said physical injury causing WTA 2 2
. Missing 926 928

CIQGPHK - Doc gave no definite diagnosis for WTA

Variable Name:
CIQGPHK
SAS Label:
Doc gave no definite diagnosis for WTA
English Text:
Doc gave no definite diagnosis for being, worried, tense, or anxious
English Instructions:
(Collection name = D66PD1)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
11 Doc gave no definite diagnosis for WTA 5 5
. Missing 923 928

CIQGPHZZ - CHECK ITEM

Variable Name:
CIQGPHZZ
English Instructions:
IF ANY OF CIQGPHA - CIQGPHE SELECTED THEN SKIP TO CIDGPRB; ELSE IF ANY OF CIDGPHI-CIQGPHH SELECTED THEN SKIP TO CIQGPJ; ELSE IF ANY OF CIQGPHI-CIQGPHJ SELECTED THEN SKIP TO CIQGPN; ELSE IF CIQGPHK SELECTED THEN SKIP TO CIQGPQ; ELSE IS REFUSED OR DON'T KNOW THEN SKIP TO CIDGPRB.
Target:
Both males and females 20 YEARS - 39 YEARS

CIQGPJ - Was WTA always result MDA?

Variable Name:
CIQGPJ
SAS Label:
Was WTA always result MDA?
English Text:
Was being, worried, tense, or anxious always result of midicine, drugs, or alcohol?
English Instructions:
(Collection name = D66PD3)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 0 0 CIDGPRB
2 No 2 2
7 Refused 0 2
9 Don't know 0 2
. Missing 926 928

CIQGPK - Was WTA result of phys illness?

Variable Name:
CIQGPK
SAS Label:
Was WTA result of phys illness?
English Text:
When being, worried, tense, or anxious was not the result of medicine, drugs, or alcohol, was being, worried, tense, or anxious result of physical illness?
English Instructions:
(Collection name = D66PD4)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 0 0 CIDGPRB
2 No 2 2 CIDGPRB
7 Refused 0 2 CIDGPRB
9 Don't know 0 2 CIDGPRB
. Missing 926 928

CIQGPQ - Anything abnormal when examined?

Variable Name:
CIQGPQ
SAS Label:
Anything abnormal when examined?
English Text:
Anything abnormal when examined?
English Instructions:
(Collection name = D66PD10)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Nothing abnormal 2 2 CIDGPRB
2 No examination 1 3 CIDGPRB
3 Something abnormal 2 5
7 Refused 0 5 CIDGPRB
9 Don't know 0 5 CIDGPRB
. Missing 923 928

CIQGPN - Was WTA always result of phys illness?

Variable Name:
CIQGPN
SAS Label:
Was WTA always result of phys illness?
English Text:
Was being, worried, tense, or anxious always result of physical illness?
English Instructions:
(Collection name = D66PD7)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 3 3 CIQGPN
2 No 2 5
7 Refused 0 5
9 Don't know 0 5
. Missing 923 928

CIQGPO - Was WTA always result MDA?

Variable Name:
CIQGPO
SAS Label:
Was WTA always result MDA?
English Text:
When being, worried, tense, or anxious was not result of physical illness, was being, worried, tense, or anxious always result medicine, drugs, or alcohol?
English Instructions:
(Collection name = D66PD8)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 0 0
2 No 2 2
7 Refused 0 2
9 Don't know 0 2
. Missing 926 928

CIDGPRB - General cause of WTA

Variable Name:
CIDGPRB
SAS Label:
General cause of WTA
English Text:
General cause of being, worried, tense, or anxious
English Instructions:
(Collection name = D66PRB)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 No Problem 0 0
2 Not clinically significant 28 28
3 Medication, Drugs, or Alcohol 0 28
4 Physical cause 3 31
5 Psychiatric Symptom 48 79
. Missing 849 928

CIQG19 - Remember age when first WTA?

Variable Name:
CIQG19
SAS Label:
Remember age when first WTA?
English Text:
Can you remember your exact age the very first time in your life you had a period of worry, tension, or anxiety like the one you had in the past 12 months (that lasted six months or longer) and you also had some of the other problems we just reviewed?
English Instructions:
(Collection name = D69)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 65 65
2 No 13 78 CIQG21
7 Refused 0 78 CIQG21
9 Don't know 1 79 CIQG21
. Missing 849 928

CIQG20 - How old were you when first WTA?

Variable Name:
CIQG20
SAS Label:
How old were you when first WTA?
English Text:
How old were you when first WTA?
English Instructions:
YEARS OF AGE (Collection name = D69A)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
9 to 38 Range of Values 65 65
77 Refused 0 65
99 Don't know 0 65
. Missing 863 928

CIQG20ZZ - CHECK ITEM

Variable Name:
CIQG20ZZ
English Instructions:
GO TO CIQG23
Target:
Both males and females 20 YEARS - 39 YEARS

CIQG21 - About how old when first WTA?

Variable Name:
CIQG21
SAS Label:
About how old when first WTA?
English Text:
About how old were you the first time you had a period of this sort?
English Instructions:
YEARS OF AGE (Collection name = D69B)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
14 to 31 Range of Values 12 12
77 Refused 0 12
99 Don't know 2 14
. Missing 914 928

CIQG22 - Earliest age period of WTA

Variable Name:
CIQG22
SAS Label:
Earliest age period of WTA
English Text:
What's the earliest age you can clearly remember a particular time when you had a period of this sort?
English Instructions:
YEARS OF AGE (Collection name = D69C)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
14 to 39 Range of Values 11 11
77 Refused 0 11
99 Don't know 3 14
. Missing 914 928

CIQG23 - Recency of period of WTA

Variable Name:
CIQG23
SAS Label:
Recency of period of WTA
English Text:
And how recently did you have a period of this sort -- in the past month, past six months, or more than six months ago?
English Instructions:
(Collection name = D69D)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Past Month 29 29
2 Past 6 Months 26 55
3 Over 6 Months 24 79
7 Refused 0 79
9 Don't know 0 79
. Missing 849 928

CIQG24 - How upset for feeling WTA?

Variable Name:
CIQG24
SAS Label:
How upset for feeling WTA?
English Text:
In the past 12 months, how upset have you been with yourself for feeling worried, tense, or anxious -- very upset, somewhat, not very, or not at all upset?
English Instructions:
(Collection name = D67)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Very upset 19 19
2 Somewhat Upset 43 62
3 Not very upset 5 67
4 Not at all upset 12 79
7 Refused 0 79
9 Don't know 0 79
. Missing 849 928

CIQG25 - WTA interfere with daily life?

Variable Name:
CIQG25
SAS Label:
WTA interfere with daily life?
English Text:
Think about how your life and activities were affected in the past 12 months by your worry, tension or anxiety. Did these things interfere with your life and activities -- a lot, some, a little, or not at all?
English Instructions:
(Collection name = D68)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 A lot 26 26
2 Some 28 54
3 A little 16 70
4 Not at all 9 79
7 Refused 0 79
9 Don't know 0 79
. Missing 849 928

CIQG26 - No. days totally unable work

Variable Name:
CIQG26
SAS Label:
No. days totally unable work
English Text:
About how many days in the past 12 months were you totally unable for the whole day to work and carry out your other normal activities because of your worry, tension, or anxiety? You can answer with any number between 0 and 365.
English Instructions:
(Collection name = D68A)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 365 Range of Values 70 70
777 Refused 0 70
999 Don't know 0 70
. Missing 858 928

CIQG26ZZ - CHECK ITEM

Variable Name:
CIQG26ZZ
English Instructions:
IF CIQG26=0 GO TO CIQG29; IF CIQG26=1 GO TO CIQG27; ELSE GO TO CIQG28
Target:
Both males and females 20 YEARS - 39 YEARS

CIQG27 - Did day occur past 4 weeks?

Variable Name:
CIQG27
SAS Label:
Did day occur past 4 weeks?
English Text:
Did that day occur in the past four weeks?
English Instructions:
(Collection name = D68A_1)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 0 0 CIQG29
2 No 1 1 CIQG29
7 Refused 0 1 CIQG29
9 Don't know 0 1 CIQG29
. Missing 927 928

CIQG28 - No. days totally past 4 weeks

Variable Name:
CIQG28
SAS Label:
No. days totally past 4 weeks
English Text:
How many of these days occurred in the past four weeks?
English Instructions:
NUMBER OF DAYS (Collection name = D68A_2)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 28 Range of Values 25 25
77 Refused 0 25
99 Don't know 0 25
. Missing 903 928

CIQG29 - No. days cutback amount/quality

Variable Name:
CIQG29
SAS Label:
No. days cutback amount/quality
English Text:
[Not counting the day(s) you were totally unable to work,] about how many (other) days in the past 12 months did you cut back either on the amount of work you got done or on the quality of your work because of your worry, tension, or anxiety? (Again, you can use any number between 0 and 365.)
English Instructions:
NUMBER OF DAYS (Collection name = D68B)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 365 Range of Values 67 67
777 Refused 0 67
999 Don't know 1 68
. Missing 860 928

CIQG29ZZ - CHECK ITEM

Variable Name:
CIQG29ZZ
English Instructions:
IF CIQG29=0 GO TO CIQG33; ELSE CONTINUE
Target:
Both males and females 20 YEARS - 39 YEARS

CIQG30 - Describe quantity/quality cutback

Variable Name:
CIQG30
SAS Label:
Describe quantity/quality cutback
English Text:
Thinking about (that cutback day/those cutback days), on a scale from 0 to 100 where zero means being totally unable to work and 100 means working a full high quality day, what number describes the quantity and quality of your work during (that day/those days)? You can use any number between 0 and 100.
English Instructions:
RECORD NUMBER BETWEEN 0 AND 100 (Collection name = D68C)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 85 Range of Values 45 45
777 Refused 0 45
999 Don't know 0 45
. Missing 883 928

CIQG30ZZ - CHECK ITEM

Variable Name:
CIQG30ZZ
English Instructions:
IF CIQG29=1 GO TO CIQG31; ELSE GO TO CIQG32
Target:
Both males and females 20 YEARS - 39 YEARS

CIQG31 - Did cutback occur past 4 weeks?

Variable Name:
CIQG31
SAS Label:
Did cutback occur past 4 weeks?
English Text:
Did that cutback day occur in the past four weeks?
English Instructions:
(Collection name = D68C_1)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 0 0 CIQG36
2 No 1 1 CIQG36
7 Refused 0 1 CIQG36
9 Don't know 0 1 CIQG36
. Missing 927 928

CIQG32 - No. days cutback past 4 weeks

Variable Name:
CIQG32
SAS Label:
No. days cutback past 4 weeks
English Text:
How many of these cutback days occurred in the past four weeks?
English Instructions:
NUMBER OF DAYS (Collection name = D68C_2)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 28 Range of Values 18 18
77 Refused 0 18
99 Don't know 0 18
. Missing 910 928

CIQG33 - No. days extreme effort to work

Variable Name:
CIQG33
SAS Label:
No. days extreme effort to work
English Text:
[Not counting the day(s) (you were totally unable to work)/(or)/(you cut back on work),] about how many (other) days in the past 12 months did it take an extreme effort to perform up to your usual level at work or at your other normal daily activities because of your worry, tension, or anxiety? (Again, you can use any number between 0 and 365.)
English Instructions:
NUMBER OF DAYS (Collection name = D68C_3)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 180 Range of Values 63 63
777 Refused 0 63
999 Don't know 0 63
. Missing 865 928

CIQG33ZZ - CHECK ITEM

Variable Name:
CIQG33ZZ
English Instructions:
IF CIQG33=0 GO TO CIQG36; IF CIQG33=1 GO TO CIQG34; ELSE GO TO CIQG35
Target:
Both males and females 20 YEARS - 39 YEARS

CIQG34 - Did extreme occur past 4 weeks?

Variable Name:
CIQG34
SAS Label:
Did extreme occur past 4 weeks?
English Text:
Did that day occur in the past four weeks?
English Instructions:
NUMBER OF DAYS (Collection name = D68C_3_1)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 0 0 CIQG36
2 No 1 1 CIQG36
7 Refused 0 1 CIQG36
9 Don't know 0 1 CIQG36
. Missing 927 928

CIQG35 - No. days extreme past 4 weeks

Variable Name:
CIQG35
SAS Label:
No. days extreme past 4 weeks
English Text:
No. days extreme past 4 weeks
English Instructions:
NUMBER OF DAYS (Collection name = D68C_3_2)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 10 Range of Values 14 14
77 Refused 0 14
99 Don't know 0 14
. Missing 914 928

CIQG36 - No. days interfere personal life

Variable Name:
CIQG36
SAS Label:
No. days interfere personal life
English Text:
And about how many days in the past 12 months did your worry, tension, or anxiety seriously interfere with your personal or social life? (Again, you can use any number between 0 and 365.)
English Instructions:
NUMBER OF DAYS (Collection name = D68D)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 365 Range of Values 70 70
777 Refused 0 70
999 Don't know 0 70
. Missing 858 928

CIQG36ZZ - CHECK ITEM

Variable Name:
CIQG36ZZ
English Instructions:
IF CIQG36=0 GO TO CIDGSCOR; IF CIQG36=1 GO TO CIQG37; ELSE GO TO CIQG38
Target:
Both males and females 20 YEARS - 39 YEARS

CIQG37 - Did interfere occur past 4 weeks?

Variable Name:
CIQG37
SAS Label:
Did interfere occur past 4 weeks?
English Text:
Did that day occur in the past four weeks?
English Instructions:
NUMBER OF DAYS (Collection name = D68D_1)
Target:
Both males and females 20 YEARS - 39 YEARS
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 928 928

CIQG38 - No. days interfere past 4 weeks

Variable Name:
CIQG38
SAS Label:
No. days interfere past 4 weeks
English Text:
How many of these days occurred in the past four weeks?
English Instructions:
NUMBER OF DAYS (Collection name = D68D_2)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 28 Range of Values 50 50
77 Refused 0 50
99 Don't know 0 50
. Missing 878 928

CIDGSCOR - GAD score

Variable Name:
CIDGSCOR
SAS Label:
GAD score
English Text:
GAD score
English Instructions:
(Collection name = GAD)
Target:
Both males and females 20 YEARS - 39 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Positive Diagnosis 19 19
5 Negative Diagnosis 794 813
. Missing 115 928

Appendix 1: Algorithms to determine the panic score variable

NHANES 2003-2004 Data Documentation
August 2006
NHANES Composite International Diagnostic Interview -
Panic Disorder Module (CIQPAN_C)
Data Appendices
Survey Years Included in this File: 2003-2004

The following algorithms were used to determine the panic score variable.

libname nh6 xport 'C:\nhanes\ciqpan_c.xpt';
data ciqpan_c;
set nh6.ciqpan_c;
if n(of CIQP:)=0 then return;

/* Panic Disorder */
/* A. Intense period of fear of discomfort that is recurrent and occur in
unexpected situation. Four or more attack symptoms. At least 1 attack
followed by a month of concern, worry, or behavior change.*/

cntpdisa=0;
if CIQP13A=1
then cntpdisa=cntpdisa+1;
if CIQP13B=1
then cntpdisa=cntpdisa+1;
if CIQP13C=1
then cntpdisa=cntpdisa+1;
if CIQP13E=1
then cntpdisa=cntpdisa+1;
if CIQP13F=1
then cntpdisa=cntpdisa+1;
if CIQP13G=1
then cntpdisa=cntpdisa+1;
if CIQP13H=1
then cntpdisa=cntpdisa+1;
if CIQP13I=1
then cntpdisa=cntpdisa+1;
if CIQP13J=1 or CIQP13K=1
then cntpdisa=cntpdisa+1;
if CIQP13L=1
then cntpdisa=cntpdisa+1;
if CIQP13N=1
then cntpdisa=cntpdisa+1;
if CIQP13O=1
then cntpdisa=cntpdisa+1;
if CIQP13P=1
then cntpdisa=cntpdisa+1;
if CIQP03=1 and 1<CIQP14<7777 and cntpdisa>=4
and CIQP15 in(1,2) and CIQP12^=2 and 1<CIQP32<7777
and (CIQP04=1 or CIQP06=1 or CIQP08=1)
then pdisa=1;
else pdisa=5;

/* C. Panic attacks are not due to a direct physiological effect of a
substance of general medical condition */

if CIDPPRB in(3,4)
then pdisc=5;
else pdisc=1;
if pdisa=1 and pdisc=1
then pdis=1;
else pdis=5;
cidpscor = pdis;
run;