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世界核心医学期刊文摘（儿科学分册） 2005年第5期1卷 39-39页

作者： Roche K. M. Ellen J. Astone N. M. 虎小毅 dept. of pop. and fam. h lth. sci. J. Hopkins Bloomberg Sch. Pub. Hlth. 615 N Wolfe St Baltimore MD 21205 United StatesDr.

Objective: To examine the association between patterns of outof-school care o ver time and the initiation of sex among young adolescents living in low-income urban fam.lies. Design: A prospective cohort study (using a 16-month follow-u p) examining the predictive value of changes in out-of-school-care arrangemen ts on early sex initiation. Setting and Participants: By using a multistage stra tified area probability sampling strategy, we selected 494 subjects aged 11 to 1 3 years living in low-income central city neighborhoods who did not report havi ng had sexual intercourse by time *** Outcome Measure: Adolescent report of having had sexual intercourse by time ***: Bivariate results suggested th at being at home with an adult during out-of-school hours was related to less sex initiation than self-care, care at another person’s home, and attendance a t an organized/supervised activity. Adjusting for demographic attributes, parent al monitoring, parental curfews, and fam.ly routines, remaining in out-of-home care or selfcare was associated with a 2.5 times (95%confidence interval, 1. 3-5.1 times) increase in the likelihood of initiating sexual intercourse when compared with being at home with an adult at both assessment times. Conclusion: Policies and programs that enable young adolescents to spend their out-of-scho ol hours at home with an adult may help reduce the risk of early sex initiation among youth in low-income urban areas.

关键词：收入中心外监护城市居民区城市家庭早期性课外时间性交史评估阶段统计学特征自我监护

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