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医学沦文,需要运用统计学的方法处理数据,以保证结论的科学性。但有的作者由于对统计学重视不够,在其文章中常常见到一些错例,本文将就医学文章中常见的统计学问题,作一初步分析。 (一)相对数的误用,将“比”当“率”比和率均为相对数,用百分数(％)表示,但其意义不同。构成比即说明事物或现象内部各构成部分的比重;率则表示某一现象在一定范围内发生的频率或强度。有人报告兰尾炎261例,其中男性占64.37％(168/261),女性占35.63％(93/261),男性高于女性(p<0.01)要下这一结论应该计算“率”,分别以
Degradation of medicine, the need to use statistical methods to deal with the data in order to ensure the scientific conclusion. However, some authors, due to insufficient attention to statistics, often find some mistakes in their articles. This article will make a preliminary analysis of the common statistical problems in medical articles. (A) the relative use of misuse, the “ratio” when the “rate” ratio and relative rate are relative, expressed as a percentage (%), but its significance. Composition ratio is the proportion of each component within the phenomenon or phenomenon; rate is the frequency or intensity of occurrence of a phenomenon within a certain range. It was reported 261 cases of mansony, which accounted for 64.37% (168/261) of males, females accounted for 35.63% (93/261), males were higher than females (p <0.01). This conclusion should be calculated “rate”, respectively To