In different age groups, the death level peaked at both sides and it was low in middle age groups.

在不同年龄组人群中，死亡水平呈现出“两头高、中间低”的特点。

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Objective to understand the death level of injury and prevalent trend among residents in Yichang city from 1978 to 1999. Methods Data from the death report statistics were analyzed.

目的了解宜昌市1978 ~ 1999年居民伤害死亡水平及流行趋势。方法统计分析居民死亡报告单。

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Objective to understand disease death level and characteristic at present so as to provide basis for making countermeasures and improving use of health resources.

目的了解现阶段人群死亡特点和水平，为制订疾病控制策略提供依据。

youdao

Objective to understand disease death level and characteristic at present so as to provide basis for making countermeasures and improving use of health resources.

目的了解现阶段人群死亡特点和水平，为制订疾病控制策略提供依据。

youdao