In this stable population, the proportion of deaths from cardiac causes was relatively low, but there are pitfalls in the classification of death.

而是死亡分类有着缺陷，在这个稳定的人群中，由于心脏问题导致死亡的比例相对较低。

youdao

Methods Data from the life information system of Yuzhou during 1974 ~ 2003 were analyzed (with SAS 6.12). Death causes are classified with ICD-9 Classification Standard.

方法采用禹州市1974 ~ 2003年生命统计信息库资料，按照ICD - 9国际标准进行死因分类，用SAS 6.12进行数据分析。

youdao

Mr Macniven also said that coding of the causes of death was being updated to take account of changes to the World Health Organisation's international classification of diseases and related health problems.

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