This paper recommends the use of the geometric mean of the age-specificmortality rates as a summary index of mortality. This index is intuitively simple, easy to calculate, and it ne...
According to the date obtained the mortality from various diseases of silicotics were calculated and compared with agespecific death rate of local residents using SMR as index.
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;
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Results The ageSpecificmortality at age 50 and over can be expressed a single function of age x both in all China or various areas of China.