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对贵州安龙燃煤型砷中毒病区地方性慢性砷毒接触者发砷含量与年龄、性别、病情的关系进行了研究。结果显示，病区砷中毒患者和亚临床患者发砷含量均呈２０倍以上高于正常对照组；患者发砷含量有随病情轻重程度而增高的倾向；正常人群中发砷含量男高于女的现象在燃煤型砷中毒患者和亚临床患者中不再存在，且反有女性高于男性的倾向。另外，本组患者发砷含量有随年龄增加而增高的趋势，这主要是女性患者发砷含量随年龄增加而增高的因素造成的。上述研究结果表明，发砷含量与环境煤砷污染有密切关系，发砷含量显著升高是燃煤型地方性砷中毒病区存在的主要特征之一；定期发砷含量抽查更宜作为病区的直接监测指标；没有临床表现的病区居民，可能已有亚临床砷中毒患者存在，而对此类患者存在的判断，发砷含量显得更为重点
The relationship between arsenic content and age, sex and disease in endemic chronic arsenic poisoning patients in Anlong coal-burning arsenism area in Guizhou was studied. The results showed that arsenic in patients with arsenic poisoning and subclinical patients were 20 times higher than the normal control group; patients with arsenic content with the severity of the disease tends to increase the tendency of the normal population of arsenic was higher than the female Phenomenon no longer exists in patients with coal-arsenic poisoning and subclinical patients, and anti-women tend to be higher than men. In addition, the incidence of arsenic in patients with this group increased with age trend, which is mainly caused by female patients with increased levels of arsenic caused by factors that increase with age. The results of the above studies show that the content of arsenic in sentinel is closely related to the arsenic pollution in the environment, and the significant increase in the content of arsenic is one of the main characteristics of the endemic arsenic poisoning in coal-burning areas. Of the direct monitoring indicators; no clinical manifestations of ward residents, there may have been subclinical arsenic poisoning patients exist, and judgments exist for such patients, hair arsenic content is more focused