School of Social and Behavioral Sciences, Nanjing University, Nanjing, People's Republic of China.
Int Perspect Sex Reprod Health. 2012 Dec;38(4):196-204. doi: 10.1363/3819612.
The age at sexual debut is declining in China, but little is known about the relationship between the social and demographic characteristics of Chinese youth and the timing of debut.
Data were drawn from the 2009 National Youth Reproductive Health Survey, which collected background information and age at sexual debut from 22,300 unmarried youth aged 15-24. Life table analysis was used to estimate the gender-specific distributions of sexual debut by age, according to urban or rural residence and by region. Cox proportional hazard regression models were then employed to identify characteristics associated with the timing of debut among males and females.
The mean age at sexual debut was 22.8 years (22.5 years for men and 23.1 years for women). Sexual debut before age 18 was rare for both genders, and ages 21-24 appear to be the normative range for sexual debut. Life table analysis found that debut was earlier for males than for females, for those living in a rural area than for those in urban areas, and for those living in western China than for those in other regions. In multivariate hazard regression analysis, males had a 30% greater risk of experiencing sexual debut within each year of age than did females. Living in a household with both biological parents, having a father with a junior or senior high school education, being a college graduate and living in an urban area were associated with a reduced risk of experiencing sexual debut.
This study provides insight into the basic patterns and social and demographic correlates of sexual debut among Chinese youth.
在中国，性初体验的年龄正在下降，但人们对中国青年的社会人口特征与初体验时间之间的关系知之甚少。
数据来自 2009 年全国青年生殖健康调查，该调查从 22300 名未婚 15-24 岁青年中收集了背景信息和性初体验年龄。生命表分析用于根据城乡居住和地区估计男性和女性性初体验年龄的性别分布。然后，使用 Cox 比例风险回归模型来确定男性和女性初体验时间相关的特征。
性初体验的平均年龄为 22.8 岁（男性为 22.5 岁，女性为 23.1 岁）。两性中，性初体验发生在 18 岁之前的情况很少见，21-24 岁似乎是性初体验的正常年龄范围。生命表分析发现，男性的初体验年龄早于女性，农村地区的初体验年龄早于城市地区，西部地区的初体验年龄早于其他地区。在多变量风险回归分析中，男性在每增加一岁时，性初体验的风险比女性高 30%。与父母双方同住、父亲接受过初中或高中教育、大学毕业和居住在城市地区与性初体验风险降低相关。
本研究深入了解了中国青年性初体验的基本模式和社会人口特征。
