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1975年济宁地区卫生局采取整群抽样五分之一人口的方法,对1,414,841人进行了死因调查。调查结果,以死于呼吸系疾病者居首位,死亡率为133.58/10万,循环系疾病占第二位,死亡率为123.32/10万;传染病、寄生虫病占第三位,死亡率为66.65/10万;
In 1975, the Jining Regional Bureau of Health adopted a cluster sampling of one fifth of the population to conduct a cause of death investigation on 1,414,841 people. The survey results showed that the death rate was 133.58 / lakh and the second was circulatory diseases, with the death rate of 123.32 / lakh. Infectious diseases and parasitic diseases accounted for the third place with the highest death rate The rate is 66.65 / 100000;