Chilvers C, Conway D
J Epidemiol Community Health. 1985 Mar;39(1):44-7. doi: 10.1136/jech.39.1.44.
Sixty-seven small areas in England have been classified into four groups according to the level of naturally occurring fluoride in their water supplies. Small area mortality statistics for 1969-73 have been used to look for differences in cancer mortality in relation to fluoride levels. Deaths from all cancers and from cancer at 12 specific body sites have been examined; no consistent trends in mortality are apparent. These results provide no evidence of a harmful effect of naturally occurring fluoride in water supplies.
英格兰的67个小区域已根据其供水系统中天然存在的氟化物水平分为四组。利用1969年至1973年的小区域死亡率统计数据,来寻找癌症死亡率与氟化物水平之间的差异。已对所有癌症以及12个特定身体部位的癌症死亡情况进行了检查;未发现明显的死亡率一致趋势。这些结果没有提供证据表明供水系统中天然存在的氟化物有有害影响。