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为了解农场女生月经初潮及其卫生保健状况，我站对513名女中学生进行了月经初潮年龄凋查，初潮平均年龄为13．73岁，最小年龄为8岁，最大年龄为17岁，95％正常范围为11．3～11．16岁，初潮主要发生在6、7、8三个月，占39．38％，8月份构成比最高为14．62％。对月经初潮有心理准
In order to understand the menarche and health care status of the girls on the farm, I stationed 513 female high school students to check the age of menarche. The average age of menarche was 13.73, the minimum age was 8 and the maximum age was 17 and 95%. The normal range is 11.3 to 11.16 years old. Menarche mainly occurs in 6, 7, and 8 months, accounting for 39.38%. The composition ratio in August was the highest at 14.62%. Be mentally accurate with menarche