Comstock G W, Cauthen G M, Helsing K J, Goldberg E L
Stroke. 1979 Mar-Apr;10(2):199-205. doi: 10.1161/01.str.10.2.199.
Deaths associated with strokes from 1963 to 1975 among 36,860 adult residents of Washington County, Maryland, were studied in relation to the hardness of drinking water at home, assessed on the basis of 1,569 water samples taken during this period. There was no satisfactory evidence that water hardness was related to stroke mortality. Age was a strongly related factor. There was little or no association with sex, marital status, socio-economic status as reflected by education or housing, smoking history, or frequency of church attendance.
对1963年至1975年间马里兰州华盛顿县36,860名成年居民中与中风相关的死亡情况进行了研究，研究内容涉及家庭饮用水的硬度，饮用水硬度是根据该时期采集的1,569份水样进行评估的。没有令人满意的证据表明水的硬度与中风死亡率有关。年龄是一个密切相关的因素。与性别、婚姻状况、以教育程度或住房反映的社会经济地位、吸烟史或去教堂做礼拜的频率几乎没有关联。
