Table 2.
Correlates of Sexual Role Preference in Unprotected Anal Sex, Multivariate Multinomial Models
| Exclusively Receptive vs. Exclusively Insertive UAS |
Versatile vs. Exclusive Insertive UAS |
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|---|---|---|---|---|---|---|
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| Variable | aRRR | 95% CI | p-value | aRRR | 95% CI | p-value |
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| Age (years) | <0.0001 | <0.0001 | ||||
| ≤ 25 | Ref | NA | NA | Ref | NA | NA |
| 26-30 | 0.83 | 0.66 – 1.06 | 0.14 | 0.81 | 0.67 – 0.98 | 0.031 |
| 31-35 | 0.59 | 0.46 – 0.74 | <0.0001 | 0.66 | 0.55 – 0.80 | <0.0001 |
| ≥ 36 | 0.43 | 0.34 – 0.54 | <0.0001 | 0.47 | 0.40 – 0.57 | <0.0001 |
|
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| Race/ethnicity | 0.26 | 0.009 | ||||
| White | Ref | NA | NA | Ref | NA | NA |
| Black | 0.85 | 0.62 – 1.14 | 0.28 | 0.65 | 0.50 – 0.86 | 0.002 |
| Hispanic | 1.08 | 0.87 – 1.34 | 0.50 | 1.10 | 0.92 – 1.31 | 0.29 |
| Other | 1.26 | 0.92 – 1.72 | 0.15 | 1.01 | 0.78 – 1.29 | 0.96 |
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| General alcohol use in last 6 months | 0.10 | 0.86 | ||||
| None | Ref | NA | NA | Ref | NA | NA |
| Light1 | 0.77 | 0.61 – 0.98 | 0.03 | 0.95 | 0.78 – 1.17 | 0.66 |
| Moderate1 | 0.79 | 0.61 – 1.02 | 0.08 | 1.00 | 0.80 – 1.25 | 1.00 |
| Heavy1 | 0.93 | 0.68 – 1.27 | 0.64 | 1.00 | 0.76 – 1.31 | 1.00 |
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| Use of alcohol or drugs before or after sex | ||||||
| Never or occasionally | Ref | NA | NA | Ref | NA | NA |
| Often or all the time | 1.08 | 0.92 – 1.25 | 0.35 | 1.10 | 0.97 – 1.24 | 0.14 |
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| Non-injection drug use in last 6 months | ||||||
| Amyl nitrates | 1.21 | 1.05 – 1.41 | 0.01 | 1.23 | 1.09 – 1.38 | 0.001 |
| Cocaine | 0.95 | 0.79 – 1.13 | 0.55 | 0.96 | 0.83 – 1.11 | 0.59 |
| Amphetamines | 1.09 | 0.89 – 1.32 | 0.40 | 1.28 | 1.09 – 1.51 | 0.003 |
| Hallucinogens | 0.98 | 0.83 – 1.16 | 0.85 | 1.28 | 1.11 – 1.47 | 0.001 |
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| Primary partner2 | 1.06 | 0.93 – 1.21 | 0.37 | 1.92 | 1.73 – 2.14 | <0.0001 |
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| Number of sex partners in last 6 months | <0.0001 | <0.0001 | ||||
| 1 | Ref | NA | NA | NA | NA | NA |
| 2-3 | 1.12 | 0.90 – 1.39 | 0.30 | 0.71 | 0.60 – 0.85 | <0.0001 |
| 4-9 | 1.04 | 0.84 – 1.30 | 0.71 | 0.67 | 0.56 – 0.80 | <0.0001 |
| ≥ 10 | 0.71 | 0.56 – 0.90 | 0.004 | 0.80 | 0.67 – 0.96 | 0.014 |
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| Self-reported STIs3 in last 6 months | ||||||
| Chlamydia | 0.62 | 0.43 – 0.89 | 0.01 | 0.87 | 0.66 – 1.15 | 0.33 |
| Gonorrhea | 0.76 | 0.50 – 1.17 | 0.22 | 1.03 | 0.78 – 1.36 | 0.85 |
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| Partner HIV status | <0.0001 | <0.0001 | ||||
| HIV positive | Ref | NA | NA | Ref | NA | NA |
| HIV unknown | 1.51 | 1.29 – 1.77 | <0.0001 | 1.34 | 1.16 – 1.54 | <0.0001 |
| HIV negative | 2.34 | 1.98 – 2.75 | <0.0001 | 3.47 | 3.00 – 4.01 | <0.0001 |
Light alcohol use: three or less drinks/day on no more than 1–2 days/week. Moderate alcohol use: four or five drinks/day on no more than 1–2 days/week, or one to five drinks/day on 3–6 days/week, or one to three drinks/day on a daily basis. Heavy alcohol use: four or more drinks every day or six or more drinks on a typical day when drinking
A participant was determined to have a primary partner if he reported that he was in a primary relationship with a male sex partner in the last 6 months.
STI: Sexually transmitted infections
UAS: unprotected anal sex
NA: not applicable
aRRR: adjusted relative risk ratio
The multivariate models controlled for study arm (intervention vs. control arm), employment status, and site.