This paper recommends the use of the geometric mean of the age-specific mortality rates as a summary index of mortality. This index is intuitively simple, easy to calculate, and it ne...

本文以年龄别死亡率几何均数作为年龄别死亡率的一个概括指标，优点是直观简单、易计算、不需要标准人口、不同人口可直接比较，并可反映年龄别死亡率的指数类型。

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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.

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 age Specific mortality at age 50 and over can be expressed a single function of age x both in all China or various areas of China.

结果中国各地区男女性5 0岁以上人口年龄别死亡率都可用一简单数学函数来表示。

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That is the TFR only goes up if women really are having more children on average, not if there are simply more children being born overall, and life expectancy goes up only if there are declines in age-specific mortality.

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