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自1983年10月至1984年10月间,我们对柳河、通化市等三所朝鲜族中学224名女生的月经情况进行了调查,现报告如下。资料分析一、月经初潮年龄:最小11岁,最大17岁,平均为13.77岁;11岁的占总数1.79％,12岁的占14.29％,13岁的占25.45％,14岁的占31.7％,15岁的占18.3％,16岁的占7.14％,17岁的占1.34％。12～16岁为正常范围,占总数的96.87％。二、月经初潮至转为正常周期的时间,15～27天3人,占总数的1.34％;28～30天194人,占总数的86.61％;50～60天26人,占总数的11.61％;周期不定者1人,占总数的0.45％。30天以内者占总数的87.95％。三、行经天数:3天以内者58人,占总数的25.89％;4天以内87人,占总数的38.84％;5天以内的36
From October 1983 to October 1984, we conducted a survey on the menstrual conditions of 224 girls in three Korean secondary schools in Liuhe and Tonghua and are reported as follows. Data analysis First, the age of menarche: the youngest 11 years old, maximum 17 years old, with an average of 13.77 years; 11 years old accounted for 1.79% of the total, 12.2 years old accounted for 14.29%, 13 years old accounted for 25.45%, 14 years old accounted for 31.7% 18.3% are 15 years old, 7.14% are 16 years old and 1.34% are 17 years old. 12 to 16 years old as the normal range, accounting for 96.87% of the total. Second, the menarche to normal cycle time, 15 to 27 days 3, accounting for 1.34% of the total; 28 to 30 days 194, accounting for 86.61% of the total; 50 to 60 days 26, accounting for 11.61% of the total, ; One cycle of uncertainty, accounting for 0.45% of the total. Within 30 days accounted for 87.95% of the total. Third, the number of days: 58 within 3 days, accounting for 25.89% of the total; 87 people within 4 days, accounting for 38.84% of the total; within 5 days 36