Morin M M, Sharrett A R, Bailey K R, Fabsitz R R
Int J Epidemiol. 1985 Jun;14(2):254-64. doi: 10.1093/ije/14.2.254.
An apparent excess risk of all-cancer mortality among 473 of the largest US cities was found in relation to surface drinking water supplies. The increased risk for 100% surface water versus 100% ground water use was slight, about 2%, but statistically significant. This finding agrees with reports from several earlier studies in smaller geographical regions of the US, Great Britain and Canada. A relationship was further supported by the replication of this association within the larger of the 11 independent regions studied. Our data suggest that the association with surface water may be specific to cancer mortality. The increased risk would be expected to be greater than 2% if analyses were restricted to cancers of sites previously related to the use of surface drinking water.
在美国473个最大城市中，发现地表饮用水供应与全癌死亡率之间存在明显的额外风险。与100%使用地下水相比，100%使用地表水的风险增加幅度较小，约为2%，但具有统计学意义。这一发现与美国、英国和加拿大较小地理区域内的几项早期研究报告一致。在11个独立研究区域中较大的区域内，这种关联的重复出现进一步支持了这种关系。我们的数据表明，与地表水的关联可能特定于癌症死亡率。如果分析仅限于以前与使用地表饮用水有关的部位的癌症，预计风险增加幅度将大于2%。
