【摘要】 本次对1983—1985年间和1987—1988年所拍大骨节病6个小学手部X线片、部分学生家庭经济生活、卫生、水源、居住条件、粮食贮藏等方面的对比调查,发硒和粮硒分析,结果显示①干骺端病变检出率的下降均有显著性差异②发硒含量除先锋小学外,均超过110ppm以上③发硒水平与末次干骺端病变检出率有负相关关系,与干骺端病变检出率下降速率无关④硒水平的提高原因有待进一步研究。更多还原

【Abstract】 A contrast investigation was carried out on the finger roentgenograms, the economic status of the families, the sanitary conditions, the source of water, the housing conditions,the storing of grain,etc.of the pupils of six primary schools during the Period 1983-1985 and 1987-1988. The results are as follows:(l) The metaphyseal pathological change detection rate was significantly reduceid; (2) the hair selenium content exceeded more than 110 ppm except Xian Feng primary School;(3) there was a significant negative correlation between the hair selenium content and the metaphyseal change detection rate, with no correlation between the drop speed of the metaphyseal pathological detection rate and the heir selenium content. The cause of the selenium high level needs a further study.更多还原