2013年发布的对淮河流域地区消化道肿瘤死亡变化分析研究显示：比对淮河流域地区人群30年死亡模式的变化趋势时，显示污染最严重、持续时间最长的地区——洪河、沙颍河、涡河以及奎河等支流地区——恰恰是消化道肿瘤死亡上升幅度最高的地区，其上升幅度是全国相应肿瘤死亡平均上升幅度的3～10倍。空间分析结果显示严重污染地区和新出现的几种消化道肿瘤高发区高度一致。
A comparison of thirty-year trends of death patterns among groups of people in the Huaihe River shows that the most severely and persistently polluted areas，i.e.，such tributaries as the Honghe，Shaying，Wohe and Kuihe Rivers，happen to be the ones with the fastest growing numbers of deaths caused by digestive tract tumors，according to results of analytical research on changes in such deaths in the Huaihe River Basin published in 2013.Those numbers have each been rising at a rate 3-10 times as high as the average rate at which the number of deaths caused by a corresponding tumor has been rising in China.Spatial analysis results show that severely polluted areas are highly consistent with areas with high incidence of several emerging digestive tract tumors.
