探讨燃煤型砷中毒流行因素的作用。方法用单因素及多因素非条件Logistic回归模型对 15 1例砷中毒患者和 6 9例对照的暴露因素进行了分析。结果发现危险因素按作用大小依次是燃用高砷煤的年限、居室通风情况差、发砷及尿总砷负荷高、吸烟、氟中毒 (OR >1,P <0 0 5 ) ;影响因素有文化程度和家庭经济状况 (OR <1,P <0 0 5 )。结论提示应采取综合措施来预防燃煤型砷中毒。 To explore the role of coal-based arsenic poisoning epidemic factors. Methods Univariate and multivariate non-conditional logistic regression models were used to analyze the exposure factors of 15 patients with arsenism and 69 controls. The results showed that the risk factors according to the role of the size of the high-arsenic coal burning years, room ventilation was poor, arsenic and urine total arsenic load, smoking, fluorosis (OR> 1, P <0 05); influencing factors Education level and family economic status (OR <1, P <0 05). Conclusion suggests that comprehensive measures should be taken to prevent coal-fired arsenic poisoning.