Sample Size Calculations for Comparing Groups with Binary Outcomes.

上海精神医学 Pub Date : 2017-10-25 DOI:10.11919/j.issn.1002-0829.217132

Xunan Zhang, Jiangnan Lyu, Justin Tu, Jinyuan Liu, Xiang Lu

引用次数: 3

Abstract

Sample size is a critical parameter for clinical studies. However, to many biomedical and psychosocial investigators, power and sample size analysis seems like a magic trick of statisticians. In this paper, we continue to discuss power and sample size calculations by focusing on binary outcomes. We again emphasize the importance of close interactions between investigators and biostatisticians in setting up hypotheses and carrying out power analyses.

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二元结果组比较的样本量计算。

样本量是临床研究的一个重要参数。然而，对于许多生物医学和社会心理学研究者来说，功率和样本大小分析似乎是统计学家的一个魔术。在本文中，我们通过关注二进制结果继续讨论幂和样本量计算。我们再次强调研究者和生物统计学家在建立假设和进行功率分析时密切互动的重要性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

上海精神医学

自引率

0.00%

发文量

2341

期刊介绍： Shanghai archives of psychiatry (bimonthly) was founded in 1959 and is sponsored by Shanghai Mental Health Center. The journal is aimed at mental health workers across the country, including psychiatrists and nurses, clinical psychologists, social workers, and people who are committed to the cause of mental health. It focuses on reporting clinical research results and practical experience in the field of psychiatry, and introduces the latest knowledge in psychiatry and related fields. The columns include monographs, case reports, clinical case discussions, reviews, mental health and law, and debates and discussions.