ArticleNan fang yi ke da xue xue bao = Journal of Southern Medical University2023
[Comparison of 7 methods for sample size determination based on confidence interval estimation for a single proportion].
Article in Nan fang yi ke da xue xue bao = Journal of Southern Medical University, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- The Relationship Between Physician Self-Disclosure and Patient Acquisition in Digital Health Markets: Cross-Sectional Study.Journal of medical Internet research · 2026Observational
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Authors and funding
4 authors.
Funding
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Abstract
objectiveTo compare different methods for calculating sample size based on confidence interval estimation for a single proportion with different event incidences and precisions.
methodsWe compared 7 methods, namely Wald, AgrestiCoull add z2, Agresti-Coull add 4, Wilson Score, Clopper-Pearson, Mid-p, and Jefferys, for confidence interval estimation for a single proportion. The sample size was calculated using the search method with different parameter settings (proportion of specified events and half width of the confidence interval [ω=0.05, 0.1]). With Monte Carlo simulation, the estimated sample size was used to simulate and compare the width of the confidence interval, the coverage of the confidence interval and the ratio of the noncoverage probability.
resultsFor a high accuracy requirement (ω =0.05), the Mid-p method and Clopper Pearson method performed better when the incidence of events was low (
conclusionDifferent sample size determination methods based on confidence interval estimation should be selected for single proportions with different parameter settings.
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