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. Author manuscript; available in PMC: 2010 May 27.
Published in final edited form as: Ann Epidemiol. 2008 May;18(5):403–410. doi: 10.1016/j.annepidem.2007.12.003

Table 1.

Demographic, Socio-economic, Substance Abuse, and Sexual Behavior Characteristics and Sexually Transmitted Infections (STIs) among African Americans aged 18–61 Years (UNC Rural Health Project, North Carolina, 1997–2000, N=320).

Men (N=115) Women (N=205)
N* Weighted % N* Weighted %
Demographic characteristics
Age (years)
 18–24 6 13.2 40 14.9
 25–29 9 16.5 31 13.6
 30–34 11 7.8 34 11.5
 35–39 36 17.3 32 13.8
 40–44 23 18.8 31 20.2
 45–49 10 8.8 19 13.5
 50–54 7 5.5 7 4.8
 55–61 13 12.2 11 7.7
Marital status
 Married, lives with spouse 47 46.3 56 37.5
 Married, does not live with spouse 8 1.7 17 4.1
 Not married, lives with sexual partner 16 12.8 29 10.6
 Not married, lives alone 43 39.2 102 47.2
Socio-economic indicators
Educational attainment
 8th grade or less 6 1.1 6 1.0
 Some high school 24 16.9 43 17.3
 High school graduate or equivalent 43 44.4 75 37.3
 Vocational or trade school 9 9.0 13 6.2
 Some college or 2 year degree 23 21.2 50 26.0
 Finished college 9 6.3 14 9.5
 Master’s or other advanced degree 1 1.1 4 2.9
Annual household income in past year
 Less than $12000 20 11.2 56 14.8
 $12–16000 12 7.5 23 11.1
 $16–25000 25 23.7 28 15.7
 $25–50000 21 25.6 43 23.7
 Over $50000 19 22.6 14 8.7
 Refused/unable 18 9.5 41 26.0
Currently unemployed (not working full- or part-time for pay)
 Yes 36 16.7 74 26.0
 No 79 83.3 131 74.0
Homeless in past 10 years
 Yes 16 6.5 16 3.8
 No 99 93.5 188 95.2
Worried about food for self or family in past month
 Yes 25 12.7 40 14.5
 No 90 87.3 165 85.5
Currently receives federal aid (food stamps, welfare)
 Yes 29 9.6 86 32.5
 No 86 90.4 117 65.9
Neighborhood safety
 Safe (feels quite safe or extremely safe from crime) 33 22.6 55 24.8
 Unsafe (feels slightly safe or not at all safe from crime) 82 77.4 150 75.2
Incarceration history
Time since most recent incarceration in past 10 years
 Never incarcerated in past 10 years 69 71.0 184 94.6
 Prior incarceration: >24 hours 6–10 years ago 14 6.2 6 1.4
 Recent incarceration: >24 hours in past 5 years 32 22.8 14 3.0
Duration of time incarcerated
 Never incarcerated in past 10 years 69 71.0 184 94.6
 Short-term incarceration: >24 hours and <1month in past 10 years 15 14.7 9 1.9
 Long-term incarceration: ≥1 month in past 10 years 31 14.3 11 2.6
Incarceration of recent sexual partners
 0 of last 3 partners ever incarcerated >24 hours 82 85.5 81 47.3
 1 of last 3 partners ever incarcerated >24 hours 17 11.4 66 29.1
 ≥2 of last 3 partners ever incarcerated >24 hours 14 3.1 57 22.6
Substance abuse history
Ever used crack, cocaine, or heroine in past 10 years
 Yes 23 6.8 24 5.3
 No 92 93.2 181 94.7
Frequent (≥once weekly) use of 5 daily alcoholic beverages or marijuana in past 10 years
 Yes 53 34.9 52 19.9
 No 62 65.1 153 80.1
Sexual behavior and sexually transmitted infections (STIs)
Age at first sex (years)
 15 or younger 63 47.5 78 32.0
 16–18 42 43.3 98 52.2
 19–29 10 9.2 27 14.2
Multiple (≥2) sexual partnerships in past year
 Yes 52 46.8 67 25.3
 No 63 53.2 138 74.7
Concurrent sexual partnerships in past year
 Yes 45 42.9 46 19.0
 No 70 57.1 159 81.0
Transactional sex in past year
 Yes 18 5.9 13 2.9
 No 97 94.1 191 96.1
High-risk sexual partnerships in past year (multiple partnerships or transactional sex)§
 Yes 58 49.1 73 27.8
 No 57 50.9 131 71.3
Self-reported STI|| diagnosis, lifetime
 Yes 59 48.7 100 38.0
 No 56 51.3 104 62.0
Self-reported STI|| diagnosis in past year
 Yes 15 5.3 24 2.9
 No 98 92.7 180 97.1
*

Totals may not sum to 115 among men or 205 among women due to missing values of some variables.

Weighting accounted for differential sampling probabilities between HIV-positive and HIV-negative participants and yielded estimates generalizable to African Americans aged 18 to 61 years residing in the 13 eastern, rural North Carolina county study area, excluding injection drug users and men who have sex with men.

Incarceration exposure in main analysis (see Table 2).

§

Sexual behavior outcome in main analysis (see Table 2).

||

Respondents who reported being diagnosed with gonorrhea, Chlamydial infection, trichomonas, syphilis, or herpes were coded as having an STI diagnosis.