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1971～1991年对长沙市居民中老年慢性支气管炎205例,头3年用死卡介苗治疗,治程1/2～2年,以后每年定期随访。寿命表法计算逐年累加存活率,5年为68.3％,10年50.7％,20年19.5％。肺心病、肺部感染居死因首位,以喘息型多见,多死于冬春。吸烟者死于恶性肿瘤显著增多。X线胸片大多表现为支气管炎型或紫绀臃肿型阻塞性肺气肿。死卡介苗治疗前后细胞免疫体内试验均在90％以上,未发现免疫麻痹。
From 1971 to 1991, 205 elderly patients with chronic bronchitis in Changsha were treated with dead BCG for the first 3 years and were treated for one to two to two years after treatment. Regular follow-up was conducted every year thereafter. Life expectancy method calculates cumulative annual survival rate of 68.3% for 5 years, 50.7% for 10 years and 19.5% for 20 years. Pulmonary heart disease, lung infection in the first place of death, with wheezing more common, more died in winter and spring. Smokers died of a significant increase in malignancy. X-ray showed mostly bronchitis or cyanotic bloated obstructive emphysema. Before and after the dead BCG treatment of cellular immunity in vivo tests were more than 90%, immune paralysis was not found.