World Health Organization multicenter study on menstrual and ovulatory patterns in adolescent girls. II. Longitudinal study of menstrual patterns in the early postmenarcheal period, duration of bleeding episodes and menstrual cycles. World Health Organization Task Force on Adolescent Reproductive He
World Health Organization multicenter study on menstrual and ovulatory patterns in adolescent girls. II. Longitudinal study of menstrual patterns in the early postmenarcheal period, duration of bleeding episodes and menstrual cycles. World Health Organization Task Force on Adolescent Reproductive He
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世界卫生组织关于青春期女孩月经和排卵模式的多中心研究。
DOI：
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发表时间：
1986
期刊：
影响因子：
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通讯作者：
B. Huurneman
中科院分区：
文献类型：
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作者：
F. N. Boonstra;R. Cox;A. M. Reimer;C. A. Verezen;Piet Rison;B. Huurneman
在一项为期两年的研究中，670名女孩（年龄11-15岁）提交了从第一次月经出血开始的月经日记（第一组），802名女孩（年龄11-15岁）在研究之前已经经历过月经初潮（第二组）。这两组受试者分别在三个中心招募：科隆博（城市）、Peradeniya（农村）（均位于斯里兰卡）和香港。第I组和第II组出血事件的平均持续时间分别为4.7天（SD 1.8）和4.9天（SD 1.4）。初潮后第一个月经周期的中位长度为34天，38.3%的月经周期长于40天。到第5个周期，中位时间为31天，与第II组相似。周期规律性的建立定义为在10天范围内连续三个周期，三个周期均不短于20天或长于40天。第一组中19%的女孩在前三个周期实现了这一规律性，在整个研究期间有67%的女孩实现了这一规律性，而第二组为89%。
During a two-year study, 670 girls (aged 11-15 years) submitted menstrual diaries that started at the onset of their first menstrual bleeding (Group I), and 802 girls (aged 11-15 years) who had already experienced menarche prior to the study (Group II) kept similar diaries. The two groups were recruited in three centers: Colombo (urban), Peradeniya (rural), both in Sri Lanka, and Hong Kong. The mean duration of bleeding episodes was 4.7 days (SD 1.8) in Group I and 4.9 days (SD 1.4) in Group II. The median length of the first cycle after menarche was 34 days, with 38.3% of the cycles being longer than 40 days. By the 5th cycle the median length was 31 days, similar to that of Group II. The establishment of cycle regularity was defined by three successive cycles within the range of 10 days with none of the three cycles shorter than 20 or longer than 40 days. This regularity was achieved by 19% of the Group I girls in the first three cycles and by 67% of these girls during the entire study period, compared to 89% in Group II.