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1 对象和方法2 0 0 1年 9月对西安市城区中小学生 74 85 7人进行了体检。其中男生 384 2 0人 ,占总人数的5 1 32 % ;女生 36 437人 ,占总人数的 4 8 6 8%。本次调查的常见病包括 :视力不良、沙眼、眼科其它、龋齿、耳病、鼻病、肝脾肿大、内科其它、外科、贫血等 ,患病率 =患?
1 Subjects and methods 2 0 0 1 September September Xi’an city primary and secondary school students 74 857 were examined. Among them, 384,20 boys are male, accounting for 5,132% of the total; 36,437 girls are female, accounting for 486,8% of the total. The prevalence of this survey include: poor eyesight, trachoma, ophthalmology, dental caries, ear disease, rhinopathy, hepatosplenomegaly, other medical subjects, surgery, anemia, prevalence = suffering?