计算矽肺患者各类疾病死亡率，与当地居民的年龄别死亡率进行比较，计算标化死亡比；

According to the date obtained the mortality from various diseases of silicotics were calculated and compared with age specific death rate of local residents using SMR as index.

youdao

计算矽肺患者各类疾病死亡率，与当地居民的年龄别死亡率进行比较，计算标化死亡比；

According to the date obtained the mortality from various diseases of silicotics were calculated and compared with age specific death rate of local residents using SMR as index.

youdao