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坦桑尼亚年轻人第一次发生性行为的中年龄和第一次结婚的年龄趋势:加速失败时间模型 (1994-2016)
Jacqueline Materu1,2, Eveline T Konje3, Ties Boerma4
1Sexual and Reproductive Health Program, National Institute for Medical Research, Mwanza Centre, P.O Box 1462, Mwanza, Tanzania. jacquelinemateru2@gmail.com.
Archives of sexual behavior
|January 16, 2026
概括
对于年轻人来说,第一次性行为和婚姻的中位数年龄正在增加. 高等教育与这些里程碑的晚年年龄有关,影响性健康和生育趋势.
科学领域:
- 人口统计学 人口统计学
- 公共卫生 公共卫生
- 社会学 社会学 社会学
背景情况:
- 了解第一次性活动和婚姻年龄的趋势对于公共卫生干预至关重要,特别是在性传播感染 (STIs/HIV) 和青少年性行为方面.
- 这些生命过程事件的变化会影响生育能力,避孕药的使用,以及STI/HIV传播动态.
- 传统的统计方法可能无法准确地捕捉年轻人群的趋势.
研究的目的:
- 分析15-24岁个人中第一次性行为和第一次婚姻的平均年龄趋势.
- 为了比较生存分析的有效性,特别是加速失效时间 (AFT) 模型,与传统的描述性统计数据进行趋势评估.
- 确定与第一次性活动和婚姻年龄相关的人口和社会经济因素.
主要方法:
- 利用生存分析,采用加快失效时间 (AFT) 模型与逻辑逻辑分布.
- 分析了1994年至2016年期间在马古健康和人口监测系统中进行的八项调查的数据.
- 分析的重点是15至24岁的个人.
主要成果:
- 观察到男性和女性第一次性交时的平均年龄增加了一年.
- 发现第一次结婚的中位数年龄在女性中增加了一年,在男性中增加两年.
- AFT模型显示这些中位数随着时间的推移逐渐增加,与标准描述性统计数据没有显著变化的时期形成鲜明对比.
- 与中学或高等教育的人相比,没有正规教育的个人报告说,第一次性行为和婚姻的年龄较早.
- 与艾滋病毒阳性个体相比,艾滋病毒阳性个体往往有稍早的年龄第一次性行为和婚姻相比,艾滋病毒阴性个体.
结论:
- 在研究区域的年轻成年人中,第一次性活动和结婚的平均年龄逐渐增加.
- 教育程度是延迟第一次性行为和第一次婚姻的一个重要因素.
- 加速失效时间 (AFT) 模型提供了一个比传统描述性统计数据更敏感的方法来评估这些生命过程事件的趋势.
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