National Drug Research institute, Curtin University, Perth, Australia.
National Drug and Alcohol Research Centre, University of New South Wales, Sydney, Australia.
Addiction. 2018 Jul;113(7):1276-1285. doi: 10.1111/add.14181. Epub 2018 Mar 12.
To estimate the extent to which specific sexual behaviours (being sexually active, having multiple sex partners, casual sex, condomless casual sex, anal sex and condomless anal sex) change during periods of methamphetamine use.
Within-person estimates for the relationship between methamphetamine use and sexual behaviour were derived from longitudinal panel data from the Methamphetamine Treatment Evaluation Study (MATES) cohort (2006-10).
Sydney and Brisbane, Australia.
Participants (n = 319) were recruited through treatment and other health services, self-identified as heterosexual, were aged 17-51 years, 74% were male and all were dependent on methamphetamine on study entry.
Days of methamphetamine use in the past month and sexual behaviour in the past month were both assessed using the Opiate Treatment Index.
When using methamphetamine, participants had double the odds of being sexually active compared with when they were not using, after adjustment for demographics and other substance use [adjusted odds ratio (aOR) = 1.9, P = 0.010]. When participants were sexually active, they were more likely to have multiple sex partners (aOR = 3.3, P = 0.001), casual sex partners (aOR = 3.9, P < 0.001) and condomless casual sex (aOR = 2.6, P = 0.012) when using methamphetamine than when they were not using. During months when participants had a casual sex partner, there was no significant reduction in their likelihood of condom use when they were using methamphetamine. There was no significant change in the likelihood of having anal sex or condomless anal sex during months of methamphetamine use.
Methamphetamine use is associated with an increase in being sexually active, having multiple sex partners and casual sex partners and having condomless sex with casual partners, but it is not associated with a change in condom use per se.
评估在使用冰毒期间，特定性行为（有性行为、有多个性伴侣、随意性行为、无保护套的随意性行为、肛交和无保护套的肛交）变化的程度。
从澳大利亚悉尼和布里斯班的冰毒治疗评估研究（MATES）队列的纵向面板数据中得出了冰毒使用与性行为之间的关系的个体内估计值（2006-10 年）。
悉尼和布里斯班，澳大利亚。
参与者（n=319）通过治疗和其他健康服务招募，自我认定为异性恋，年龄在 17-51 岁之间，74%为男性，所有参与者在研究开始时都依赖冰毒。
过去一个月的冰毒使用天数和过去一个月的性行为均使用阿片类药物治疗指数进行评估。
在使用冰毒时，参与者有性行为的可能性是未使用时的两倍，调整人口统计学和其他物质使用因素后[调整后的优势比（aOR）=1.9，P=0.010]。当参与者有性行为时，他们更有可能有多个性伴侣（aOR=3.3，P=0.001）、随意性伴侣（aOR=3.9，P<0.001）和无保护套的随意性行为（aOR=2.6，P=0.012），而不是在未使用冰毒时。在参与者有随意性伴侣的月份，当他们使用冰毒时，他们使用避孕套的可能性并没有显著降低。在使用冰毒期间，肛交或无保护套的肛交的可能性没有显著变化。
冰毒使用与有性行为、有多个性伴侣和随意性伴侣以及与随意性伴侣发生无保护套性行为的可能性增加有关，但与避孕套使用本身的变化无关。
