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阿勒泰地区是哈萨克族主要居住地区之一，哈萨克族（以下简称哈族）占49．33％，鉴于哈族女生月经初潮年龄的资料尚缺乏的现状，我们于1998年9～12月对3453名女生进行了月经初潮年龄调查，并与汉族女生进行了比较。1对象与方法1．1对象：随机抽取5所中专、2所中学女生3453名，?
The Altay region is one of the main areas inhabited by the Kazakh people, and the Kazak (hereinafter referred to as the Kazakh) accounted for 49.33%. Considering the lack of information on the menarche age of the Kazakh girls, we had 3453 cases from September to December 1998. The girls conducted a menarche age survey and compared them with Han girls. 1 objects and methods 1.1 objects: randomly selected 5 secondary schools, 2 3339 female students,?