交通部上海港务、海运、三航、航道及长航上海分局等均系上海水上运输系统。为今后深入开展肿瘤的防治研究工作,对五个局在五年(1973～1977)中职工因恶性肿瘤死亡的情况进行了调查分析:以上海市1973～1977年男性恶性肿瘤年龄别死亡率为标准,计算各局全部及各类恶性肿瘤的标化死亡 Shanghai Port, Shanghai, Shanghai Airlines, Shanghai Airlines, Shanghai Airlines and Changhang Shanghai Branch are the Shanghai water transportation systems. In order to conduct in-depth research on the prevention and treatment of cancer in the future, the investigation and analysis of deaths from malignant tumors in the five bureaus in five years (1973-1977) were conducted: The age-specific death rate of male malignant tumors in Shanghai from 1973 to 1977 was Standards, calculate standardized deaths of all types and types of malignant tumors in various departments