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目的 了解中学生生殖健康性行为状况及其影响因素.方法 采取分层整群抽样方法调查,利用SAS 8.1 软件完成数据的统计分析,并利用非条件logistic回归对生殖健康性行为发生的影响因素进行分析.结果 高中生边缘性行为(接吻、拥抱、爱抚等)、独自性行为(手淫、性幻想等)及性交行为的发生率高于初中生(P<0.05),男生高于女生(P<0.05).多因素分析结果表明,有恋爱经历者较无恋爱经历者更易发生性行为(OR=2.62,95%CI:1.21～5.66);从书刊、音像或大众媒体获得生殖健康知识较其他途径易发生性行为(OR=3.09,95%CI:1.43～6.51);赞成中学生恋爱及男女交往者易发生性行为(OR=2.24,95%CI:1.32～3.75).结论 中学生缺乏必要的基本性卫生知识,主要表现在边缘性行为的发生、不能正确认识独自性行为以及不适宜的性行为发生.

Objective To explore the appropriate ways and contents of reproductive health education for middle school students and to understand reproductive health related sexual behavior and influencing factors among middle school students. Methods Reproductive health related sexual behavior was evaluated among junior and senior middle school students in Luoyang by cluster sampling. The statistical software of SAS 8.1 was adopted for data analyses. Sexual behavior and influencing factors were analyzed by logistic regression. Results Critical sexual behaviors were found significantly higher in senior students,including masturbation, sexual fantasy and sexual intercourse than that in junior students (P<0.05), and boys had higher prevalence than girls (P<0.05). Results from multivariate logistic regression model analyses indicated that incidence rate of sexual behavior among those who ever having had experiences was higher than those who were inexperienced ( OR = 2.62,95 % CI:1.21-5.66). Incidence rate of sexual behavior was related to access of reproductive health and STD/AIDS knowledge ( OR = 3.09,95 % CI:1.43-6.51). In addition, incidence rate of sexual behavior was related to attitude and relation of amour between boys and girls ( OR = 2.24,95 % CI:1.32-3.75). Conclusion Awareness on reproductive health knowledge among middle school students was not enough. Marginal sexual behaviors as masturbation and sexual fantasy had not been correctly and openly discussed to avoid inappropriate sexual activities.