Department of Sociology, Brown University, Box 1916, 112 George Street, Providence, RI 02912, USA.
Popul Stud (Camb). 2010 Nov;64(3):247-61. doi: 10.1080/00324728.2010.507872.
Research on concurrent sexual partnerships is hindered by lack of accurate partnership data. Using unique life-history calendar data from a population-based sample of youths aged 18-24 in urban Kenya, we estimated the prevalence and correlates of concurrency. In the sixth month before the survey, 3.5 per cent of females and 4.0 per cent of males were engaged in concurrent sexual partnerships. In the previous 9.5 years, males experienced more concurrent partnerships than females and they were of shorter duration. Using survival analysis, we find that the characteristics of initial partnerships affect entry into a second (concurrent) relationship. For females, geographic separation from a partner increases the risk of concurrency, while concurrency is positively associated with the duration of the initial relationship for males. For both sexes, the perception of partner infidelity increases the risk, suggesting that concurrency expands individuals' sexual networks and bridges additional networks involving partners' other sexual partners.
关于同时性伴侣的研究受到缺乏准确伴侣数据的阻碍。利用肯尼亚城市地区一个基于人群的 18-24 岁青年样本的独特生活史日历数据，我们估计了同时性伴侣的流行率和相关因素。在调查前的第六个月，3.5%的女性和 4.0%的男性从事同时性伴侣关系。在过去的 9.5 年中，男性经历的同时性伴侣关系比女性多，且持续时间更短。使用生存分析，我们发现初始伴侣关系的特征会影响进入第二段（同时性）关系。对于女性来说，与伴侣的地理分离会增加同时性伴侣的风险，而对于男性来说，同时性伴侣与初始关系的持续时间呈正相关。对于两性来说，伴侣不忠的感知都会增加风险，这表明同时性伴侣关系扩大了个体的性网络，并连接了涉及伴侣其他性伴侣的额外网络。
