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青少年是意外伤害的高危人群 ,意外伤害不仅对青少年健康造成巨大危害 ,而且给家庭和社会带来了沉重负担。为了解宁夏中小学生伤害的疾病负担 ,评价其危害性 ,我们于2 0 0 0年 1 2月对宁夏的中小学生进行了伤害调查。1 对象与方法1 1 对象 采用整群抽样方法 ,在宁夏中小学?
Adolescents are at high risk of accidental injury. Accidental injury not only causes great harm to the health of adolescents but also places a heavy burden on families and the community. In order to understand the burden of disease borne by primary and secondary school students in Ningxia and evaluate their harmfulness, we conducted a survey on primary and secondary school students in Ningxia in February 2000. 1 objects and methods 1 1 object cluster sampling method, in Ningxia primary and secondary schools?