Wellings K, Wadsworth J, Johnson A M, Field J, Whitaker L, Field B
Department of Public Health and Policy, London School of Hygiene and Tropical Medicine.
BMJ. 1995 Aug 12;311(7002):417-20. doi: 10.1136/bmj.311.7002.417.
To explore the relation between receipt of sex education and experience of first intercourse.
The national survey of sexual attitudes and lifestyles is based on a sample of 18,876 respondents aged 16-59, randomly selected from the Post Office's small-user postcode address file. Data were collected between May 1990 and November 1991 by personal interviews combining a self administered questionnaire with a face to face interview.
Age at first intercourse, use of contraception at first intercourse, actual and preferred source of sex education (including school based lessons).
Median age at first intercourse fell by four years for women and three years for men over the past four decades, to 17 for both men and women aged 16-19 at the time of interview. Of those respondents for whom school was the main source of information about sexual matters, men were less likely, and women no more likely, to have had intercourse before the age of 16 than were those citing other main sources, such as friends and the media. Both men and women were more likely to have used some method of contraception. In multivariate analysis, these effects remained after controlling for the effect of current age, educational attainment, and religious affiliation.
These data provide no evidence to support the concern that provision of school sex education might hasten the onset of sexual experience. These findings have important implications for the provision of sexual health education and highlight the need to carry out prospective and randomised studies of the impact of sex education.
探讨接受性教育与首次性交经历之间的关系。
全国性态度和生活方式调查基于从邮政局小用户邮政编码地址文件中随机抽取的18876名年龄在16 - 59岁之间的受访者样本。数据于1990年5月至1991年11月期间通过个人访谈收集，访谈结合了自填问卷和面对面访谈。
首次性交的年龄、首次性交时使用避孕措施的情况、性教育的实际和首选来源（包括学校课程）。
在过去四十年中，女性首次性交的中位年龄下降了4岁，男性下降了3岁，在访谈时16 - 19岁的男性和女性首次性交的中位年龄均为17岁。在那些将学校作为性方面主要信息来源的受访者中，与那些提及其他主要来源（如朋友和媒体）的人相比，男性在16岁之前发生性交的可能性较小，女性的可能性并未增加。男性和女性使用某种避孕方法的可能性都更大。在多变量分析中，在控制了当前年龄、教育程度和宗教信仰的影响后，这些效应仍然存在。
这些数据没有提供证据支持关于提供学校性教育可能会加速性经历开始的担忧。这些发现对性健康教育的提供具有重要意义，并强调有必要对性教育的影响进行前瞻性和随机研究。
