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本文引用的文献

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Sample size for beginners.初学者的样本量
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Relation of fingerprints and shape of the palm to fetal growth and adult blood pressure.指纹和手掌形状与胎儿生长及成人血压的关系。
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两组比较中二元、有序分类和连续结局的样本量估计。

Estimating sample sizes for binary, ordered categorical, and continuous outcomes in two group comparisons.

作者信息

Campbell M J, Julious S A, Altman D G

机构信息

Medical Statistics and Computing, University of Southampton, Southampton General Hospital.

出版信息

BMJ. 1995 Oct 28;311(7013):1145-8. doi: 10.1136/bmj.311.7013.1145.

DOI:10.1136/bmj.311.7013.1145
PMID:7580713
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2551061/
Abstract

Sample size calculations are now mandatory for many research protocols, but the ones useful in common situations are not all easily accessible. This paper outlines the ways of calculating sample sizes in two group studies for binary, ordered categorical, and continuous outcomes. Formulas and worked examples are given. Maximum power is usually achieved by having equal numbers in the two groups. However, this is not always possible and calculations for unequal group sizes are given.

摘要

现在，许多研究方案都必须进行样本量计算，但在常见情况下有用的样本量计算方法并非都易于获取。本文概述了两组研究中针对二元、有序分类和连续结果计算样本量的方法。文中给出了公式和实例。通常两组人数相等时能达到最大检验效能。然而，这并非总是可行的，本文也给出了不等组样本量的计算方法。