User's guide to sample size estimation in diagnostic accuracy studies

AKOĞLU H.

Turkish Journal of Emergency Medicine, cilt.22, sa.4, ss.177-185, 2022 (ESCI) identifier identifier identifier identifier

  • Yayın Türü: Makale / Derleme
  • Cilt numarası: 22 Sayı: 4
  • Basım Tarihi: 2022
  • Doi Numarası: 10.4103/2452-2473.357348
  • Dergi Adı: Turkish Journal of Emergency Medicine
  • Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI), Scopus, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.177-185
  • Anahtar Kelimeler: Calculator, diagnostic accuracy, online, sample size, sensitivity, specificity, POWER
  • Marmara Üniversitesi Adresli: Evet

Özet

© 2022 Emergency Medicine Association of Turkey. All rights reserved.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.