Stein Cheryl R, Kaufman Jay S, Ford Carol A, Feldblum Paul J, Leone Peter A, Miller William C
Department of Epidemiology, School of Public Health, University of North Carolina at Chapel Hill, North Carolina, USA.
Sex Transm Dis. 2008 May;35(5):447-52. doi: 10.1097/OLQ.0b013e3181659236.
Sexual partner mixing by age is common among adolescents and adults. Although adolescent girls with older male partners are at increased risk of sexually transmitted infection, the importance of this association in young adults is unclear.
To assess the association between partner age difference and prevalence of chlamydial infection among young women.
Using Wave III of the National Longitudinal Study of Adolescent Health (April 2, 2001-May 9, 2002), the authors examined the relation between the prevalence of chlamydial infection and the partner age among women aged 18 to 26 years.
Among women with most recent partners 2 to 8 years younger, the odds of chlamydial infection were approximately 2 times greater [adjusted odds ratio (OR), 1.8; 95% confidence interval (CI), 0.9, 3.5] than among women with partners within 1-year age difference, adjusting for number of partners in the past year. Prevalence of chlamydial infection was only slightly greater for women with partners 2 to 5 years older (adjusted OR, 1.4; 95% CI, 0.9, 2.3) and partners 6 or more years older (adjusted OR, 1.6; 95% CI, 0.9, 2.8), when compared with women with partners within 1-year age difference. The relation between most discordant partner age difference and chlamydial infection seems to vary by women's race/ethnicity, although these stratified estimates are imprecise.
These findings suggest that among young adult women, in contrast to adolescents, older male partners are only moderately associated with the prevalence of chlamydial infection. Young adult women have the lowest odds of infection with partners within 1 year of age difference.
按年龄划分的性伴侣混合情况在青少年和成年人中很常见。虽然与年龄较大男性伴侣交往的少女感染性传播感染的风险增加，但这种关联在年轻成年人中的重要性尚不清楚。
评估年轻女性伴侣年龄差异与衣原体感染患病率之间的关联。
作者利用青少年健康全国纵向研究的第三波数据（2001年4月2日至2002年5月9日），研究了18至26岁女性衣原体感染患病率与伴侣年龄之间的关系。
在最近伴侣比自己小2至8岁的女性中，经调整过去一年性伴侣数量后，衣原体感染几率比伴侣年龄相差在1岁以内的女性高约2倍[调整优势比（OR）为1.8；95%置信区间（CI）为0.9, 3.5]。与伴侣年龄相差在1岁以内的女性相比，伴侣比自己大2至5岁（调整OR为1.4；95% CI为0.9, 2.3）以及伴侣比自己大6岁或以上（调整OR为1.6；95% CI为0.9, 2.8）的女性衣原体感染患病率仅略高。尽管这些分层估计并不精确，但伴侣年龄最不一致与衣原体感染之间的关系似乎因女性的种族/族裔而异。
这些发现表明，与青少年不同，在年轻成年女性中，年龄较大的男性伴侣与衣原体感染患病率仅存在中度关联。伴侣年龄相差在1岁以内的年轻成年女性感染几率最低。
