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目的进一步了解贵州省中小学女生月经初潮的平均年龄,与2000年贵州省汉族女学生的月经初潮情况作对比,探讨其性发育规律。方法利用2000年、2010年全国学生体质健康调查研究中贵州省女学生的月经初潮的数据,采用概率回归法来计算月经初潮的平均年龄。结果 2010年贵州省汉族女学生月经初潮的平均年龄与2000年相比呈大幅提前趋势,城女提前了2.85岁,乡女提前了0.47岁。贵州省汉族女学生月经初潮的平均年龄均比其他少数民族提前。结论近十年来贵州省汉族女学生月经初潮提前趋势明显,与这几年贵州经济、文化迅猛发展有密切关系,加强青春期性教育刻不容缓。
Objective To know more about the average age of menarche in primary and secondary school girls in Guizhou Province and compare with the situation of menarche in Han women of Guizhou in 2000 and to discuss the law of sexual development. Methods Using the data of menarche in Guizhou Province in 2000 and 2010, the average age of menarche was calculated by using the probability regression method. Results The average age of menarche of Han nationality female students in Guizhou Province in 2010 showed a sharp advance compared with that in 2000, with urban women being 2.85 years ahead of schedule and rural women being 0.47 years ahead of schedule. The mean age of menarche in Han Chinese female students in Guizhou Province is earlier than that of other ethnic minorities. Conclusions The trend of early menarche of Han nationality female students in Guizhou Province has been obvious in recent ten years. It is closely related to the rapid economic and cultural development of Guizhou in recent years. It is imperative to strengthen adolescent sexual education.