Sample Size Calculation Guide - Part 2: How to Calculate the Sample Size for an Independent Cohort Study

Abstract

In the previous article, we explained how to calculate the sample size for a cross-sectional study based on a rate or a single proportion. In this article, we will explain how to calculate the sample size for an independent cohort study based on a comparison of two proportions representing the event rates in both the exposed and the non-exposed groups.

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References

1. Fahim N, Negida A. Sample Size Calculation Guide - Part 1: How to Calculate the Sample Size Based on the Prevalence Rate. Adv J Emerg Med. 2018;2(4):e50.
2. Gómez de la Torre-del Carpio A, Bocanegra-Jesús A, Guinetti-Ortiz K, Mayta-Tristán P, Valdivia-Vega R. Mortalidad precoz en pacientes con enfermedad renal crónica que inician hemodiálisis por urgencia en una población peruana: Incidencia y factores de riesgo. Nefrología. 2018;38(4):425–32.
Published
2018-09-13
How to Cite
Fahim, N., & Negida, A. (2018). Sample Size Calculation Guide - Part 2: How to Calculate the Sample Size for an Independent Cohort Study. Advanced Journal of Emergency Medicine, 3(1), e12. https://doi.org/10.22114/ajem.v0i0.104
Section
Educational Notes in Research Methodology and Medical Statistics