美国《口腔修复学杂志》的统计学方法回顾

目的:了解美国《口腔修复学杂志》统计分析方法的应用状况。方法:抽取了美国《口腔修复学杂志》2001年至2003年的论著448篇,对其所采用的统计方法进行总结、归类和分析。结果:2001年到2003年论著中的统计方法使用率分别为28.06%、48.34%、51.02%,逐年增加(χ2=29.453,P<0.001)。其中常用的统计方法依次为方差分析、多重比较、非参数统计、t检验、直线相关与回归和χ2检验。结论:与国内文献相比,该杂志文献中较复杂的统计方法使用率以及使用多种统计方法的文章的比例较高,使用统计学方法的种类丰富。

A review of the statistical methods used in the journal of prosthetic dentistry

PURPOSE: To understand the present condition of statistical methods used in the Journal of Prosthetic Dentistry. METHODS: The statistical methods used in 448 treatises (from 2001 to 2003) in the journals were reviewed, classified and analysed. RESULTS: The utilization rates of statistical methods were 28.06%, 48.34% and 51.02% from 2001 to 2003,respectively. The utilization rate of statistical methods was increasing significantly with year (chi2=29.453,P<0.001).The main statistical methods were analysis of variance (ANOVA), multiple comparison, nonparametric test, t-test, linear regression and correlation and chi2 test.CONCLUSION: The utilization rates of sophisticated statistical methods and the proportion of using more than two kinds of statistical tests were all higher than that in the medical journals published in China.