Table of Contents

Locator Record

Title: Sexual Behavior (SXQ_B )
Contact Number: 1-866-441-NCHS
Years of Content: 2001 - 2002
First Published: May, 2004
Revised: NA
Access Constraints: None
Use Constraints: None
Geographic Coverage: National
Subject:Sexual Behavior
Record Source: NHANES 2001 - 2002
Survey Methodology: NHANES 2001 - 2002 is a stratified multistage probability sample of the civilian non-institutionalized population of the U.S.
Medium: NHANES Web site; SAS transport files

Component Description

The ACASI section on sexual behavior (variable name prefix SXQ) provides information on lifetime and current sexual behavior for both men and women.

Major items in this section include age of first sex, number of sexual partners, use of condoms, sexual orientation, circumcision status (for men), and history of sexually transmitted diseases.

Eligible Sample

Sample persons aged 14-59 years were eligible. Several questions in this section are age and gender specific. Data from participants aged 20-59 years are included in this release. Special use data files for participants 14-19 years will be available through the NCHS Research Data Center.

Mentally impaired individuals or participants unable to comprehend English or Spanish were not asked these questions.

Interview Setting and Mode of Administration

Private room in the mobile examination center

The NHANES Audio Computer Assisted Self Interview (ACASI) was conducted in either English or Spanish.

The ACASI enables the respondents both to hear questions through earphones and read questions on the computer and to move at their own speed as they touch the screen to indicate their response. No proxy respondents or translators were used in situations when the respondents could not self-report.

Data Processing and Editing

Responses to SXD030 (age at first sex) between 1-9 years were recoded as “9 years or younger.”

Analytic Notes

Users are cautioned about the use of SXQ292 and SXQ294 in analyses, especially in analyses that classify respondents by their responses to these questions to describe or compare subgroup characteristics. The sample size for the non-heterosexual subgroups is limited and do not meet the minimum sample size requirements for statistical reliability as noted in the NHANES analytic guidelines1. Even after combining multiple years of data, which is often recommended to estimate rarer conditions within a subgroup, the non-heterosexual subgroups do not meet the minimum sample size. Additionally, there is a high rate of not selecting a specific answer to the questions. That is, selecting ‘don’t know’, ‘refused’, ‘not sure’ or ‘something else’ as a response. This issue has been examined at length at the NCHS Questionnaire Design Research Laboratory (QDRL) recently. Individuals select these answers for a variety of reasons that are well summarized in the report Design, Development and Testing of the NHIS Sexual Identity Question2, specifically in Table 2. For example, respondents from the LGBT community select “something else’ when they use a different sexual identity label than those presented in the response options. However, those who aren’t part of the LGBT community select this answer because they are not familiar with what the response options mean.

Data Access:

The SXQ data are publicly available at www.cdc.gov/nchs/nhanes.htm.

References

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 - 59 YEARS

SXQ020 - Ever had sexual intercourse

Variable Name:
SXQ020
SAS Label:
Ever had sexual intercourse
English Text:
The next set of questions is about your sexual behavior. By sex, we mean vaginal, oral, or anal sex. Please remember that your answers are strictly confidential. Have you ever had sex?
English Instructions:
VERBAL INSTRUCTIONS TO SP: Please select yes, no.
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 2918 2918
2 No 123 3041 SXQ280
7 Refused 3 3044 SXQ280
9 Don't know 9 3053 SXQ280
. Missing 346 3399

SXD030 - Age when first had sexual intercourse

Variable Name:
SXD030
SAS Label:
Age when first had sexual intercourse
English Text:
How old were you when you had sex for the first time?
English Instructions:
VERBAL INSTRUCTIONS TO SP: Please enter an age. ENTER AGE IN YEARS.
Target:
Both males and females 20 YEARS - 59 YEARS
Hard Edits:
0 to 59
Code or Value Value Description Count Cumulative Skip to Item
10 to 40 Range of Values 2849 2849
9 9 or fewer 55 2904
777 Refused 9 2913
999 Don't know 5 2918
. Missing 481 3399

SXQ100 - #men sex intercourse partners/life

Variable Name:
SXQ100
SAS Label:
#men sex intercourse partners/life
English Text:
In your lifetime, with how many men have you had sex?
English Instructions:
VERBAL INSTRUCTIONS TO SP: Please enter a number or enter zero for none. ENTER NUMBER.
Target:
Females only 20 YEARS - 59 YEARS
Hard Edits:
0 to 9999
Code or Value Value Description Count Cumulative Skip to Item
0 to 222 Range of Values 1508 1508
77777 Refused 10 1518
99999 Don't know 4 1522
. Missing 1877 3399

SXQ120 - #men sex intercourse partners/year

Variable Name:
SXQ120
SAS Label:
#men sex intercourse partners/year
English Text:
In the past 12 months, with how many men have you had sex?
English Instructions:
VERBAL INSTRUCTIONS TO SP: Please enter a number or enter zero for none. ENTER NUMBER.
Target:
Females only 20 YEARS - 59 YEARS
Hard Edits:
0 to 9999
Code or Value Value Description Count Cumulative Skip to Item
0 to 85 Range of Values 1522 1522
77777 Refused 0 1522
99999 Don't know 0 1522
. Missing 1877 3399

SXQ130 - #women sex intercourse partners/life

Variable Name:
SXQ130
SAS Label:
#women sex intercourse partners/life
English Text:
In your lifetime, with how many women have you had sex?
English Instructions:
VERBAL INSTRUCTIONS TO SP: Please enter a number or enter zero for none. ENTER NUMBER.
Target:
Females only 20 YEARS - 59 YEARS
Hard Edits:
0 to 9999
Code or Value Value Description Count Cumulative Skip to Item
0 to 50 Range of Values 1517 1517
77777 Refused 3 1520
99999 Don't know 2 1522
. Missing 1877 3399

SXQ150 - #women sex intercourse partners/year

Variable Name:
SXQ150
SAS Label:
#women sex intercourse partners/year
English Text:
In the past 12 months, with how many women have you had sex?
English Instructions:
VERBAL INSTRUCTIONS TO SP: Please enter a number or enter zero for none. ENTER NUMBER.
Target:
Females only 20 YEARS - 59 YEARS
Hard Edits:
0 to 9999
Code or Value Value Description Count Cumulative Skip to Item
0 to 9 Range of Values 1522 1522
77777 Refused 0 1522
99999 Don't know 0 1522
. Missing 1877 3399

SXQ170 - #women sex intercourse partners/life

Variable Name:
SXQ170
SAS Label:
#women sex intercourse partners/life
English Text:
In your lifetime, with how many women have you had sex?
English Instructions:
VERBAL INSTRUCTIONS TO SP: Please enter a number or enter zero for none. ENTER NUMBER.
Target:
Males only 20 YEARS - 59 YEARS
Hard Edits:
0 to 9999
Code or Value Value Description Count Cumulative Skip to Item
0 to 9000 Range of Values 1370 1370
77777 Refused 16 1386
99999 Don't know 10 1396
. Missing 2003 3399

SXQ190 - #women sex intercourse partners/year

Variable Name:
SXQ190
SAS Label:
#women sex intercourse partners/year
English Text:
In the past 12 months, with how many women have you had sex?
English Instructions:
VERBAL INSTRUCTIONS TO SP: Please enter a number or enter zero for none. ENTER NUMBER.
Target:
Males only 20 YEARS - 59 YEARS
Hard Edits:
0 to 9999
Code or Value Value Description Count Cumulative Skip to Item
0 to 60 Range of Values 1393 1393
77777 Refused 1 1394
99999 Don't know 2 1396
. Missing 2003 3399

SXQ200 - #men sex intercourse partners/lifetime

Variable Name:
SXQ200
SAS Label:
#men sex intercourse partners/lifetime
English Text:
In your lifetime, with how many men have you had sex?
English Instructions:
VERBAL INSTRUCTIONS TO SP: Please enter a number or enter zero for none. ENTER NUMBER.
Target:
Males only 20 YEARS - 59 YEARS
Hard Edits:
0 to 9999
Code or Value Value Description Count Cumulative Skip to Item
0 to 600 Range of Values 1391 1391
77777 Refused 4 1395
99999 Don't know 1 1396
. Missing 2003 3399

SXQ220 - #men sex intercourse partners/year

Variable Name:
SXQ220
SAS Label:
#men sex intercourse partners/year
English Text:
In the past 12 months, with how many men have you had sex?
English Instructions:
VERBAL INSTRUCTIONS TO SP: Please enter a number or enter zero for none. ENTER NUMBER.
Target:
Males only 20 YEARS - 59 YEARS
Hard Edits:
0 to 9999
Code or Value Value Description Count Cumulative Skip to Item
0 to 45 Range of Values 1396 1396
77777 Refused 0 1396
99999 Don't know 0 1396
. Missing 2003 3399

SXD230 - CHECK ITEM

Variable Name:
SXD230
English Instructions:
CHECK ITEM SXD230: IF SP IS FEMALE AND HAS NEVER HAD MALE PARTNER (CODED '00' IN SXQ100), GO TO SXQ260. IF SP IS FEMALE AND TOTAL NUMBER OF PARTNERS IN SXQ.120 AND SXQ150 IS ONE OR LESS, GO TO SXQ260. IF SP IS MALE AND TOTAL NUMBER OF PARTNERS IN SXQ.190 AND SXQ220 IS ONE OR LESS, GO TO SXQ260. OTHERWISE, CONTINUE WITH SXD240.
Target:
Both males and females 20 YEARS - 59 YEARS

SXD240 - #sexual intercourse partners/past mo

Variable Name:
SXD240
SAS Label:
#sexual intercourse partners/past mo
English Text:
In the past 30 days, with how many people have you had sex?
English Instructions:
VERBAL INSTRUCTIONS TO SP: Please enter a number or enter zero for none. ENTER # OF PARTNERS.
Target:
Both males and females 20 YEARS - 59 YEARS
Hard Edits:
0 to 9999
Code or Value Value Description Count Cumulative Skip to Item
0 to 16 Range of Values 466 466
77777 Refused 0 466 SXQ260
99999 Don't know 0 466 SXQ260
. Missing 2933 3399

SXQ250 - #times had sex without condom/past mo

Variable Name:
SXQ250
SAS Label:
#times had sex without condom/past mo
English Text:
In the past 30 days, how many times have you had sex without using a condom?
English Instructions:
VERBAL INSTRUCTIONS TO SP: Please enter a number or enter zero for none. ENTER # OF TIMES.
Target:
Both males and females 20 YEARS - 59 YEARS
Hard Edits:
0 to 9999
Code or Value Value Description Count Cumulative Skip to Item
0 to 90 Range of Values 393 393
77777 Refused 4 397
99999 Don't know 0 397
. Missing 3002 3399

SXQ260 - Doctor ever told you had genital herpes

Variable Name:
SXQ260
SAS Label:
Doctor ever told you had genital herpes
English Text:
Has a doctor or other health care professional ever told you that you had genital herpes?
English Instructions:
VERBAL INSTRUCTIONS TO SP: Please select yes, no.
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 97 97
2 No 2816 2913
7 Refused 2 2915
9 Don't know 3 2918
. Missing 481 3399

SXQ265 - Doctor ever told you had genital warts

Variable Name:
SXQ265
SAS Label:
Doctor ever told you had genital warts
English Text:
Has a doctor or other health care professional ever told you that you had genital warts?
English Instructions:
VERBAL INSTRUCTIONS TO SP: Please select yes, no.
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 121 121
2 No 2791 2912
7 Refused 2 2914
9 Don't know 4 2918
. Missing 481 3399

SXQ270 - Doctor ever told you had gonorrhea

Variable Name:
SXQ270
SAS Label:
Doctor ever told you had gonorrhea
English Text:
In the past 12 months, has a doctor or other health care professional told you that you had gonorrhea, sometimes called GC or clap?
English Instructions:
VERBAL INSTRUCTIONS TO SP: Please select yes, no.
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 9 9
2 No 2907 2916
7 Refused 1 2917
9 Don't know 1 2918
. Missing 481 3399

SXQ272 - Doctor ever told you had chlamydia

Variable Name:
SXQ272
SAS Label:
Doctor ever told you had chlamydia
English Text:
In the past 12 months, has a doctor or other health care professional told you that you had chlamydia?
English Instructions:
VERBAL INSTRUCTIONS TO SP: Please select yes, no.
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 25 25
2 No 2885 2910
7 Refused 3 2913
9 Don't know 3 2916
. Missing 483 3399

SXQ280 - Are you circumcised or uncircumcised

Variable Name:
SXQ280
SAS Label:
Are you circumcised or uncircumcised
English Text:
Are you circumcised or uncircumcised?
English Instructions:
HAND CARD SXQ1 - CLINICAL SKETCH OF CIRCUMCISED PENIS. HAND CARD SXQ2 - CLINICAL SKETCH OF UNCIRCUMCISED PENIS. VERBAL INSTRUCTIONS TO SP: Please select circumcised, uncircumcised.
Target:
Males only 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Circumcised 1029 1029
2 Uncircumcised 407 1436
7 Refused 5 1441
9 Don't know 21 1462
. Missing 1937 3399

SXQ292 - Describe sexual orientation (male)

Variable Name:
SXQ292
SAS Label:
Describe sexual orientation (male)
English Text:
Do you think of yourself as...
English Instructions:
VERBAL INSTRUCTIONS TO SP: Heterosexual or straight (that is, sexually attracted only to women); homosexual or gay (that is, sexually attracted only to men); bisexual (that is, sexually attracted to men and women); something else; or you're not sure?
Target:
Males only 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 heterosexual or straight (attracted to women) 1394 1394
2 homosexual or gay (attracted to men) 16 1410
3 bisexual (attracted to men and women) 22 1432
4 Something else, or 1 1433
5 Not sure? 18 1451
7 Refused 1 1452
9 Don't know 10 1462
. Missing 1937 3399

SXQ294 - Describe sexual orientation (female)

Variable Name:
SXQ294
SAS Label:
Describe sexual orientation (female)
English Text:
Do you think of yourself as...
English Instructions:
VERBAL INSTRUCTIONS TO SP: Heterosexual or straight (that is, sexually attracted only to men); homosexual or lesbian (that is, sexually attracted only to women); bisexual (that is, sexually attracted to men and women); something else; or you're not sure?
Target:
Females only 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 heterosexual or straight (attracted to men) 1494 1494
2 homosexual or lesbian (attracted to women) 16 1510
3 bisexual (attracted to men and women) 31 1541
4 Something else, or 7 1548
5 Not sure? 25 1573
7 Refused 5 1578
9 Don't know 13 1591
. Missing 1808 3399