安大略省缺血性心脏病导致的猝死。
Sudden death from ischemic heart disease in ontario.
作者信息
Anderson T W, le Riche W H
出版信息
Can Med Assoc J. 1971 Jul 24;105(2):155-60.
It is possible that there is a systematic geographical variation in the proportion of deaths from ischemic heart disease that occur suddenly, and that this variation may be causally related to water hardness or some other environmental factor. Three indices of sudden death have been examined; each showed a correlation with water hardness that was of similar sign and magnitude. A detailed examination of 1686 deaths occurring in residents of two cities which differ widely in the hardness of their water supply confirmed that in deaths ascribed to heart disease the proportion of sudden deaths was higher (by 20-30%) in the northern (soft-water) city than in the southern (hard-water) city.
缺血性心脏病猝死比例可能存在系统性的地理差异，且这种差异可能与水硬度或其他环境因素存在因果关系。已对三种猝死指标进行了研究；每项指标均显示出与水硬度存在符号和量级相似的相关性。对两个供水硬度差异很大的城市居民发生的1686例死亡进行的详细检查证实，在归因于心脏病的死亡中，北部（软水）城市的猝死比例高于南部（硬水）城市（高出20%-30%）。
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