胃癌高发现场长乐县饮水类型、改水与胃癌死亡率的研究

Study on Different Water Sources,Water Improvement and Gastric Cancer Mortality in High Incidence Area Changle County

胃癌高发现场长乐县漳港乡１６年定群回顾性调查资料表明，饮用河水人群其胃癌死亡率为１２４．０５／１０万，明显高于井水组７４．８５／１０万（Ｐ＜０．０１）。在平衡饮食、吸烟、饮酒等因素后，７个沿海乡镇调查结果，饮用河水、井水、自来水组胃癌死亡率依次为８６．０３／１０万、６３．０３／１０万、２９．７８／１０万（Ｐ均＜０．０１）。本文同时对改水效应作了评价，饮用河水、井水与改饮自来水后人群胃癌死亡率的比较均呈明显下降趋势（Ｐ＜０．０５，＜０．０１），此结果为胃癌高发现场干预措施提供了理论依据。

A retrospective study on gastric cancer mortality and drinking water was carried out in high incidence area Changle county zhanggang town by 16 years.The result showed that the gastric cancer mortality of population drinking river water(121.05/10 5)was exceptionally higher than that of drinking well water (74.85/10 5).It suggested that drinking river water might be one of the important factors in that town for giving rise to gastric cancer.And another investigation was made in 7 towns of the county,which has rerealed that the gastric cancer mortalities of population dinking river ,well and tap water were 86.03/10 5,62.03/10 5,29.78/10 5 respectively (P<0.01) after controlling the confounders of diet,smoking,and drinking .In this report ,assessment of effect of the water improvement was made,we found that the gastric cancer mortalities were decreased significantly.We found that the gastric cancer mortalities were decreased significantly after transforming the river or well water to the tap water.