慢性阻塞性肺疾病 (ＣＯＰＤ)是危害健康的常见疾病。1996年全球死因位次和人数的报告中它占居第 5位 ,死亡2 88 8万人[1] 。我国 2 0世纪 70年代初 6 4万多人普查患病率为 3 82 % ,近年来调查占 15岁以上人群的 3 % ,北方地区更高 ,死亡位次仅次于脑血管病、癌症 ,位于第 3位 Chronic obstructive pulmonary disease (COPD) is a common health hazard. It accounted for the fifth place in the 1996 global rankings and number of deaths, with 28.8 million deaths [1]. In China, the prevalence of over 64,000 censuses in the early 1970s was 3 82%. In recent years, the survey accounted for 3% of the population over the age of 15 and higher in the northern region, ranking second only to cerebrovascular disease, cancer, In the third place