摘要
目的探讨均值、中位数和几何均值三种统计方法对尿氟指标的影响和相互间的差异。方法同一人群尿氟采取上述三种方法进行统计分析。结果①各县区间相同年龄组人群尿氟呈现出均值>中位数>几何均值现象,具有相同规律性;②饮水氟含量相同或接近的不同县市,均值、中位数、几何均值三者之间差值比较接近,但是,伴随着饮水氟含量的增高,三者之间的差值呈现增大的趋势。结论鉴于不同县区呈现出均值>中位数>几何均值的一致性,均值、中位数和几何值均可以作为地氟病防治工作中一项统计学评价指标。
Objective To study the affects of three types of statistic methods, mean, median and geometric mean on fluoride contents and the relationship among them. Methods Fluoride contents in urine from the same group of persons were analyzed by three types of statistics methods mentioned above. Results ①For the same group of persons ,fluoride contents showed the following relationship; mean>median>geometric mean, and this relationship applies to all the districts studied.②For those districts having the same or close fluoride content in drinking water, the mean, median and geometric mean were close, however, the difference increased as the increase of fluoride contents in drinking water. Conclusion As far as the consistent relationship, mean>median>geometric mean, applying to various districts is concerned, it is suggested that any of the averages, mean, median, and geometric mean, can be a statistic index for the evaluation of fluorosis protection.
出处
《医药论坛杂志》
2005年第10期7-8,共2页
Journal of Medical Forum
关键词
均值
中位数
几何均值
尿氟
Mean
Median
Geometric mean
Fluoride content in urine
