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目的调查研究1997-2006年间浙江省桐乡市洲泉、乌镇和石门三镇恶性肿瘤的发病情况,分析其与外环境水砷浓度的关系。方法调查桐乡市洲泉、乌镇和石门三镇各医院病案室所有恶性肿瘤病案资料,及省疾控中心年度人口统计年报表中的人口资料并对其进行统计学分析。结果1997-2006年间,桐乡市洲泉、乌镇和石门镇恶性肿瘤发病率有逐渐升高的趋势,特别是近三年(2004-2006)的发病率比前7年增加明显。其中肺癌、胃癌和肝癌是发生率最高的肿瘤。在40到79岁年龄段的发病人数占总发病人数的90%左右。男性发病率大约是女性的2倍。水砷浓度在0.01-0.049 mg/L地区(乌镇)的恶性肿瘤发病率最高,而水砷浓度>0.05 mg/L的洲泉镇,恶性肿瘤发病率反而较乌镇低。结论浙江省桐乡市洲泉、乌镇和石门三镇恶性肿瘤的发病率和水砷浓度无明显相关性。
Objective To investigate the incidence of malignant tumors in Chauquan, Wuzhen and Shimen townships of Tongxiang City, Zhejiang Province from 1997 to 2006, and to analyze the relationship between them and the concentration of arsenic in water outside the environment. Methods The data of all the cases of malignant tumors in the hospitals of Zhouquan, Wuzhen and Shimen Township in Tongxiang City were surveyed and the demographic data of the annual census data of CDC were analyzed and statistically analyzed. Results During 1997-2006, the incidence of malignant tumors in Zhouquan, Wuzhen and Shimen Township in Tongxiang tended to increase gradually. Especially in the recent three years (2004-2006), the incidence of malignant tumors increased significantly compared with the previous seven years. Among them, lung cancer, stomach cancer and liver cancer are the most frequently occurring tumors. The incidence in the 40 to 79 age group accounts for about 90% of the total number of cases. The incidence of males is about twice that of females. The highest incidence of malignant tumors was found in the areas with water-arsenic concentrations of 0.01-0.049 mg / L (Wuzhen), but the incidence of malignant tumors was lower in Wuzhou Town with arsenic concentrations> 0.05 mg / L. Conclusion The incidence of malignant tumors in Zhouquan, Wuzhen and Shimen Township, Tongxiang City, Zhejiang Province has no significant correlation with the water arsenic concentration.