为了解和掌握中小学生常见病患病情况 ,为制定有效的防治措施提供科学依据。笔者于 1 999年 6月对林芝地区八一镇5 42名中小学生进行了常见病调查。1　对象与方法1 .1　对象 :八一镇 2所中学、1所小学中小学生 5 42名 ,其中男生 2 49人 ,女生 2 93人 ,年龄 7～ 1 8岁。1 .2　方 In order to understand and master the prevalence of common diseases in primary and secondary schools, to provide scientific basis for the development of effective prevention and treatment measures. In June 1999, the author conducted a survey on the prevalence of 5 42 primary and secondary school students in Bayi Town, Nyingchi Prefecture. 1 Subjects and methods 1.1 Target groups: 2 secondary schools in Bayi Town and 5 42 primary and secondary students in 1 primary school, including 2 49 boys and 2 93 girls, aged from 7 to 18 years. 1 .2 square