Crosby Richard A, Graham Cynthia A, Sanders Stephanie A, Yarber William L, Wheeler Marija V, Milhausen Robin R, Vitzthum Virginia J
Sex Health. 2019 Feb;16(1):100. doi: 10.1071/SH18136_CO.
The aim of this study was to test the hypothesis that receptive partners in penile-vaginal intercourse (PVI) who exercise independent decision making over condom use during menses do so to avert sexually transmissible infection (STI) transmission or acquisition. Data were collected through a partnership with Clue, the industry-leading female health app. A brief web-based questionnaire was developed, translated into 10 languages, and made accessible via a URL link sent to Clue users and posted on social media. Inclusion criteria were: age ≥14 years, not being currently pregnant and engaging in PVI and condom use during menses in the past 3 months. The analytical subsample comprised 12889 respondents residing in 146 countries. Twenty per cent indicated independent decision making about condom use during menses. Independent decision making was associated with lower odds of reporting that condoms were used for contraception (adjusted odds ratio (aOR) 0.65; 99% confidence interval (CI) 0.57-0.73) and higher odds that they were used for the prevention of STIs (aOR 1.44; 99% CI 1.28-1.61). A third significant finding pertained to always using condoms during menses; this was less likely among those indicating independent (female only) decision making (aOR 0.69; 99% CI 0.62-0.78). Non-significant associations with another two outcomes were found: protecting the partner against menstrual blood and protecting themselves against semen. Findings from people in 146 countries strongly support the hypothesis that those exercising independent decision making over condom use during menses do so to avert STI transmission or acquisition. That only one-fifth of this global sample reported this type of independent decision making suggests that empowerment-oriented (structural-level) interventions may be advantageous for individuals who are the receptive partner in PVI that occurs during menses.
在阴茎-阴道性交（PVI）中，在月经期间对使用避孕套进行独立决策的接受方伴侣这样做是为了避免性传播感染（STI）的传播或感染。数据是通过与行业领先的女性健康应用程序Clue合作收集的。开发了一份简短的网络问卷，翻译成10种语言，并通过发送给Clue用户的URL链接以及发布在社交媒体上供用户访问。纳入标准为：年龄≥14岁，目前未怀孕，在过去3个月内有PVI且在月经期间使用避孕套。分析子样本包括居住在146个国家的12889名受访者。20%的人表示在月经期间对使用避孕套有独立决策权。独立决策与报告避孕套用于避孕的较低几率相关（调整后的优势比（aOR）为0.65；99%置信区间（CI）为0.57-0.73），以及用于预防性传播感染的较高几率相关（aOR为1.44；99%CI为1.28-1.61）。第三个重要发现与月经期间始终使用避孕套有关；在表示有独立（仅女性）决策权的人群中，这种情况的可能性较小（aOR为0.69；99%CI为0.62-0.78）。还发现与另外两个结果无显著关联：保护伴侣免受经血影响以及保护自己免受精液影响。来自146个国家的人们的研究结果有力地支持了以下假设：那些在月经期间对使用避孕套进行独立决策的人这样做是为了避免性传播感染的传播或感染。在这个全球样本中，只有五分之一的人报告了这种独立决策，这表明以赋权为导向（结构层面）的干预措施可能对在月经期间发生的PVI中作为接受方伴侣的个体有利。
