山西消化系恶性肿瘤地理流行病学研究

山西省食管、胃和肝癌死亡占总癌亡的７０％以上。三种癌最高死亡率县基本一致，高低死亡率县呈极显著区域聚集性。山西不同经纬度地区年均气温、年均降雨量随纬度增高而逐渐减低，食管、胃和肝癌死亡率也随纬度增高而减低，两者趋势一致，且有统计学差异（Ｐ〈０．０５）。此结果与国外研究相反，应深入研究。

Study on Geographic Characteristics of Malignant Tumors in Digestive System In Shanxi Province

he mortality of esophageal,stomach and hepatic cancers occupied 70%among all who died from cancers in Shanxi province. Counties which had the highest mortality of the above three kinds of cancers showed significant aggregation.Differences between counties with higher and lower mortality were obvious. The annual mean temperture and rainfall decreased with the raise of lati-tude in Shanxi province. So was found the mortality of these cancers. Both of them tended to be coincident,and the difference was statistically significant(P<0.05).These results were not in agreement with reports from foreign countries which need to be further studied.