OBJECTIVE: This study examined the association between event-level methamphetamine use and heterosexual risk behaviors. METHOD: Data on 1213 heterosexual encounters were collected using audio-computer assisted self interviews from 703 injecting drug users in North Carolina. Data were obtained by asking participants a series of questions about the last time that they had sex (oral, vaginal, and/or anal). Although participants were interviewed at up to 3 time points, data were analyzed at the event level rather than as longitudinal because we were interested in the co-occurrence of methamphetamine use and sexual risk behaviors. Multivariate generalized estimating equations models were developed to examine the association between co-occurring methamphetamine use and each of 6 heterosexual risk behaviors. RESULTS: Methamphetamine was used in 7% of encounters. Methamphetamine use by either or both partners was associated with an increased likelihood of anal intercourse (odds ratio [OR] = 2.41, 95% confidence interval [CI] = 1.29-4.53), vaginal and anal intercourse (OR = 2.41, 95% CI = 1.22-4.77), and sex with a new partner (OR = 1.98, 95% CI = 1.09-3.61). In addition to these behaviors, methamphetamine use by both partners was also significantly associated with unprotected intercourse with a new partner (OR = 5.20, 95% CI = 2.09-12.93) and unprotected anal intercourse (OR = 4.63, 95% CI = 1.69-12.70). CONCLUSIONS: Methamphetamine use during heterosexual encounters appears to increase sexual risk-taking, especially when both partners are using it.
OBJECTIVE: This study examined the association between event-level methamphetamine use and heterosexual risk behaviors. METHOD: Data on 1213 heterosexual encounters were collected using audio-computer assisted self interviews from 703 injecting drug users in North Carolina. Data were obtained by asking participants a series of questions about the last time that they had sex (oral, vaginal, and/or anal). Although participants were interviewed at up to 3 time points, data were analyzed at the event level rather than as longitudinal because we were interested in the co-occurrence of methamphetamine use and sexual risk behaviors. Multivariate generalized estimating equations models were developed to examine the association between co-occurring methamphetamine use and each of 6 heterosexual risk behaviors. RESULTS:Methamphetamine was used in 7% of encounters. Methamphetamine use by either or both partners was associated with an increased likelihood of anal intercourse (odds ratio [OR] = 2.41, 95% confidence interval [CI] = 1.29-4.53), vaginal and anal intercourse (OR = 2.41, 95% CI = 1.22-4.77), and sex with a new partner (OR = 1.98, 95% CI = 1.09-3.61). In addition to these behaviors, methamphetamine use by both partners was also significantly associated with unprotected intercourse with a new partner (OR = 5.20, 95% CI = 2.09-12.93) and unprotected anal intercourse (OR = 4.63, 95% CI = 1.69-12.70). CONCLUSIONS:Methamphetamine use during heterosexual encounters appears to increase sexual risk-taking, especially when both partners are using it.
Authors: Catherine G Sutcliffe; Apinun Aramrattana; Susan G Sherman; Bangorn Sirirojn; Danielle German; Kanlaya Wongworapat; Vu Minh Quan; Rassamee Keawvichit; David D Celentano Journal: Sex Transm Dis Date: 2009-05 Impact factor: 2.830
Authors: Karen F Corsi; Wayne E Lehman; Sung-Joon Min; Shannon P Lance; Nicole Speer; Robert E Booth; Steve Shoptaw Journal: J AIDS Clin Res Date: 2012-06-04
Authors: William A Zule; Georgiy V Bobashev; Wendee M Wechsberg; Elizabeth C Costenbader; Curtis M Coomes Journal: J Urban Health Date: 2009-06-10 Impact factor: 3.671
Authors: Melanie L Rusch; Remedios Lozada; Robin A Pollini; Alicia Vera; Thomas L Patterson; Patricia Case; Stefanie A Strathdee Journal: J Urban Health Date: 2009-06-12 Impact factor: 3.671