大连市肿瘤发生率与居民血硒水平的研究

The Correlation Between the Content of Blood Selenium and the Cancer Occurrence Rate of the Residents in Dalian City

采用新极谱法测定大连市健康居民300例（男性159例、女性141例）和癌症患者50例全血的硒含量，分别为146．5±51．0μg／／L（148.1±50．2μg／／L和144.7±51.9μg／L）和122．7±55．9μg／L是正态分布类型，均小于我国低硒地区160μg／L血硒水平。大连市粮食和蔬莱硒含量也低于低硒地区的0．025mg／kg硒含量，而癌症发病率却高于全国平均水平呈负相关。

The blood selenium contents of three hundred healthy Dalian residents (female141,male 159) and fifty cancer patients were analyzed by using new polarographic analysis.The results of the healthy residents and the patients are 146. 5 ±51. 06 μg/L (female: 144. 7 ±51. 0 μg/L,male: 148. 1± 50. 2 μg/L)and 122. 7± 55. 9μg/L respectively and subject to normal distribution. They are all lower than 160 μg/L of low selenium content region. In Dalian,the selenium content in grain and vegetable are all lower than 0. 025mg/kg,meanwhile,cancer occurrence rate is higher than the average of the whole country.