{"title":"User's guide to sample size estimation in diagnostic accuracy studies.","authors":"Haldun Akoglu","doi":"10.4103/2452-2473.357348","DOIUrl":null,"url":null,"abstract":"<p><p>Sample size estimation is an overlooked concept and rarely reported in diagnostic accuracy studies, primarily because of the lack of information of clinical researchers on when and how they should estimate sample size. In this review, readers will find sample size estimation procedures for diagnostic tests with dichotomized outcomes, explained by clinically relevant examples in detail. We hope, with the help of practical tables and a free online calculator (https://turkjemergmed.com/calculator), researchers can estimate accurate sample sizes without a need to calculate from equations, and use this review as a practical guide to estimating sample size in diagnostic accuracy studies.</p>","PeriodicalId":46536,"journal":{"name":"Turkish Journal of Emergency Medicine","volume":null,"pages":null},"PeriodicalIF":1.1000,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/c2/16/TJEM-22-177.PMC9639742.pdf","citationCount":"10","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Turkish Journal of Emergency Medicine","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4103/2452-2473.357348","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2022/10/1 0:00:00","PubModel":"eCollection","JCR":"Q3","JCRName":"EMERGENCY MEDICINE","Score":null,"Total":0}
引用次数: 10
Abstract
Sample size estimation is an overlooked concept and rarely reported in diagnostic accuracy studies, primarily because of the lack of information of clinical researchers on when and how they should estimate sample size. In this review, readers will find sample size estimation procedures for diagnostic tests with dichotomized outcomes, explained by clinically relevant examples in detail. We hope, with the help of practical tables and a free online calculator (https://turkjemergmed.com/calculator), researchers can estimate accurate sample sizes without a need to calculate from equations, and use this review as a practical guide to estimating sample size in diagnostic accuracy studies.
期刊介绍：
The Turkish Journal of Emergency Medicine (Turk J Emerg Med) is an International, peer-reviewed, open-access journal that publishes clinical and experimental trials, case reports, invited reviews, case images, letters to the Editor, and interesting research conducted in all fields of Emergency Medicine. The Journal is the official scientific publication of the Emergency Medicine Association of Turkey (EMAT) and is printed four times a year, in January, April, July and October. The language of the journal is English. The Journal is based on independent and unbiased double-blinded peer-reviewed principles. Only unpublished papers that are not under review for publication elsewhere can be submitted. The authors are responsible for the scientific content of the material to be published. The Turkish Journal of Emergency Medicine reserves the right to request any research materials on which the paper is based. The Editorial Board of the Turkish Journal of Emergency Medicine and the Publisher adheres to the principles of the International Council of Medical Journal Editors, the World Association of Medical Editors, the Council of Science Editors, the Committee on Publication Ethics, the US National Library of Medicine, the US Office of Research Integrity, the European Association of Science Editors, and the International Society of Managing and Technical Editors.
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