伤害与感染性疾病、慢性非传染性疾病并列成为危害人类健康的三大疾病,是威胁人类健康的重要公共卫生问题之一〔1-2〕。有研究表明,2007年伤害居甘肃省疾病监测点死因构成顺位第4位,潜在减寿年数构成顺位第1位〔3〕。农村居民是 Injury and infectious diseases, chronic non-communicable diseases, side by side as the three major diseases endangering human health, is one of the important public health problems that threaten human health [1-2]. Studies have shown that in 2007 the cause of death in Gansu Province, the cause of death monitoring points constitute the fourth place, the potential life-years to form the first place ranking 〔3〕. Rural residents are