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

Autor: Nadien, Khaled Fahim, Ahmed, Negida
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Advanced Journal of Emergency Medicine (2018)
Advanced Journal of Emergency Medicine
Popis: 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.
Databáze: OpenAIRE