Table 3.
Factors associated with prevalence of new sexually transmitted infections (STIs)* among high-risk men who have sex with men and transwomen in Lima, May 2013 – May 2014**
| Variables | Prevalence of New STIs 128/401 (32%) |
Crude Prevalence Ratio (95% Conf. Interval) |
Adjusted Prevalence Ratio (95% Conf. Interval) |
|---|---|---|---|
| Age (in years) | |||
| 18-25 | 50/123 (41%) | ref | ref |
| 26-30 | 28/84 (33%) | 0.82 (0.57 – 1.19) | 0.81 (0.56 – 1.16) |
| 31-35 | 26/65 (40%) | 0.98 (0.68 – 1.42) | 0.96 (0.66 – 1.38) |
| ≥36 | 24/129 (19%) | 0.46 (0.30 – 0.70) |
0.47 (0.31 –
0.71) |
| University/Tech/Post-grad Education |
|||
| No | 55/191 (29%) | ref | |
| Yes | 73/210 (35%) | 1.21 (0.90- 1.61) | |
| Failure to meet basic needs (food, water, housing), last 12 months |
|||
| No | 55/156 (35%) | ref | |
| Yes | 73/245 (30%) | 0.85 (0.63 – 1.13) | |
| Gender and Sexual Identity |
|||
| Homosexual men | 83/219 (38%) | ref | ref |
| Hetero/Bisexual men | 18/79 (23%) | 0.54 (0.35-0.84) | 0.73 (0.44 – 1.20) |
| Transgender women who have sex with men |
25/89 (28%) | 0.74 (0.51-1.08) | 0.83 (0.56 - 1.24) |
| Role practiced during anal sex |
|||
| Insertive Only | 15/89 (17%) | ref | ref |
| Receptive Only | 39/128 (30%) | 1.81 (1.06- 3.07) | 1.61 (0.85 – 3.04) |
| Both | 74/184 (40%) | 2.39 (1.46 – 3.91) |
2.06 (1.18 –
3.59) |
| AUDIT score | |||
| ≤7 | 70/220 (32%) | ref | ref |
| ≥8 | 58/181 (32%) | 1.00 (0.76 – 1.34) | 1.00 (0.76 – 1.32) |
| No. of male or transgender sex partners, last 3 months (quartiles) |
|||
| 0 to 2 | 42/120 (35%) | ref | |
| 3 to 5 | 38/117 (32%) | 0.93 (0.65 -1.33) | |
| 6 to 10 | 21/66 (32%) | 0.91 (0.59 -1.40) | |
| 11 or more | 27/98 (28%) | 0.79 (0.53 – 1.18) | |
| Condomless anal intercourse, last 3 months |
|||
| No | 29/105 (28%) | ref | |
| Yes | 98/292 (34%) | 1.22 (0.86 – 1.72) | |
| Number of unique high- risk venues where anal sex was reported, last 3 months |
|||
| 0 | 27/90 (30%) | ref | |
| 1 | 63/196 (32%) | 1.07 (0.74 – 1.56) | |
| 2 | 21/78 (27%) | 0.90 (0.55-1.46) | |
| 3 or more | 17/37 (46%) | 1.53 (0.96 – 2.45) |
*
New STI variable included new HIV infection (participant reporting a negative HIV test result within the 6 months prior to the baseline visit), recent syphilis (an RPR titer of ≥1:16 confirmed with TPPA) and rectal Neisseria gonorrhea and Chlamydia trachomatis infections (diagnosed by nucleic acid amplification tests of self-collected rectal swabs).
**
Bold text indicates p-value < 0.05