作者根据一些公开发表的文献数据探讨了青少年群体尿氟在地方性氟中毒病区及其类型判断中的作用,并用适当的线性模型(相关指数 R~2最大且普遍适用于各地资料的线性方程)模拟其间的关系进行了分析。结果:青少年尿氟与氟斑牙患病率间有密切关系(r 值平均为0.9029),线性方程为氟斑牙率(％)=Bx尿氟(mg/L)+A,R~2值平均为0.8274,均有显著性意义,P 值<0.05至<0.001。以国家规定的病区与非病区界值8～15岁氟斑牙率30％为准,利用上述方程 The authors explored the role of urinary fluoride in adolescents with endemic fluorosis and their type judgments on the basis of published literatures. Using the appropriate linear model (correlation coefficient R ~ 2, which is the largest and generally applicable to the linear equations ) To simulate the relationship between the analysis. Results: There was a close relationship between urinary fluoride and prevalence of dental fluorosis in adolescents (r = 0.9029 on average). The linear equation was dental fluorosis rate (%) = Bx urinary fluoride (mg / L) With an average of 0.8274, all of which have significant significance, P <0.05 to <0.001. The ward and non-disease area of ​​the national boundaries of 8 to 15-year-old dental fluorosis rate of 30% subject to the use of the above equation