RT Journal Article
SR Electronic
T1 O07.5 Unprotected Sex Among High-Risk Partners: Associations Between Relational Characteristics of Last Sexual Partner and Unprotected Anal Intercourse (UAI) Among Men Who Have Sex with Men (MSM) and Transgender Women (TGW) in Lima, Peru
JF Sexually Transmitted Infections
JO Sex Transm Infect
FD BMJ Publishing Group Ltd
SP A39
OP A40
DO 10.1136/sextrans-2013-051184.0123
VO 89
IS Suppl 1
A1 M C Cambou
A1 A Perez-Brumer
A1 E R Segura
A1 J Salvatierra
A1 J Peinado
A1 J R Lama
A1 J Sanchez
A1 J L Clark
YR 2013
UL http://sti.bmj.com/content/89/Suppl_1/A39.3.abstract
AB Background Factors influencing condom use among MSM/TW may include partner type and recent STI diagnosis. We examined the association of partner type with UAI among MSM/TW in urban Lima, Peru, recently diagnosed with HIV or STI. Methods We surveyed MSM/TW in Lima diagnosed with HIV/STI within the last month regarding their sexual practises with the most recent partner according to partner type (stable, casual, anonymous, commercial sex client or sex worker). We used a multivariate regression analysis to estimate prevalence ratios (PR) with UAI as the main outcome. Results Among 340 participants (mean age: 30.9, range: 18 – 60), 62.5% self-identified as homosexual, 5.7% heterosexual, 17.6% bisexual, and 14.3% TW. Participants classified their last partners as 44.5% stable, 34.0% casual, 10.2% anonymous, 9.9% commercial sex client and 1.5% sex worker. Overall, 72.3% of participants reported UAI with their last partner. Using stable partners as the reference category, UAI was positively associated with all other partner types: PR: 1.5 (95% CI: 1.1 – 1.9, p < 0.05) for casual partners, PR: 1.5 (95% CI: 1.0 – 2.0, p < 0.05) for anonymous partners, PR: 1.6 (95% CI: 1.2 – 2.0, p < 0.05) for commercial sex clients and PR: 2.3 (95% CI: 1.7 – 3.0, p < 0.05) for sex workers. Conclusion UAI with the last partner was more commonly reported for non-stable partners. These unexpected results warrant further investigation into the influence of partner type on high-risk sexual behaviour among HIV/STI infected MSM/TGW. A better understanding of relational partner-level factors is critical for improving HIV/STI prevention and partner notification efforts for Peruvian MSM/TGW.