Amo-Adjei Joshua, Tuoyire Derek Anamaale
*African Population and Health Research Centre,Nairobi,Kenya.
‡Department of Community Medicine,School of Medical Sciences,University of Cape Coast,Ghana.
J Biosoc Sci. 2018 Mar;50(2):161-177. doi: 10.1017/S0021932017000098. Epub 2017 Apr 6.
This study aimed to contribute to the evidence on the timing of sexual debut in young people in sub-Saharan African countries. Data were extracted from 34 nationally representative surveys conducted in the region between 2006 and 2014. The study sample comprised unmarried women (n=167,932) and men (n=76,900) aged 15-24 years. Descriptive techniques and Cox proportional regression models were used to estimate the timing of sexual debut, and Kaplan-Meier hazard curves were used to describe the patterns of sexual debut in each country by sex. For the countries studied, sexual debut for both women and men occurred between the ages of 15 and 18 years, with median ages of 16 for women and 17 for men. Overall, education and household wealth provided significant protection against early sexual debut among women, but the reverse was found among men for wealth. Women in rural areas, in female-headed households and in Central, South and West Africa reported higher hazards of early commencement of sexual activity than their counterparts in urban, male-headed households and East Africa. However, the impact of these variables on male sexual debut did not follow a consistent pattern. Varied timing, as well as country-specific risk factors associated with sexual debut for young women and men across sub-Saharan Africa, were identified. Sexual health programmes and interventions for young people may require different approaches for young women and men.
本研究旨在为撒哈拉以南非洲国家年轻人首次性行为发生时间的相关证据提供补充。数据取自2006年至2014年期间在该地区开展的34项具有全国代表性的调查。研究样本包括15至24岁的未婚女性(n = 167,932)和男性(n = 76,900)。采用描述性技术和Cox比例回归模型来估计首次性行为的发生时间,并使用Kaplan-Meier风险曲线按性别描述每个国家首次性行为的模式。在所研究的国家中,女性和男性的首次性行为均发生在15至18岁之间,女性的中位年龄为16岁,男性为17岁。总体而言,教育和家庭财富对女性过早发生首次性行为具有显著的预防作用,但在男性中,财富却起到相反的作用。农村地区、女性为户主的家庭以及中非、南非和西非的女性报告的过早开始性行为风险高于城市地区、男性为户主的家庭以及东非的女性同龄人。然而,这些变量对男性首次性行为的影响并不呈现一致的模式。研究确定了撒哈拉以南非洲地区年轻女性和男性首次性行为的不同发生时间以及与特定国家相关的风险因素。针对年轻人的性健康项目和干预措施可能需要针对年轻女性和男性采取不同的方法。