Sample size calculation in medical studies
Gastroenterology and Hepatology from Bed to Bench,
Vol. 6 No. 1 (2013),
14 January 2013
,
Page Gastroenterol Hepatol Bed Bench 2013;6(1):14-17
https://doi.org/10.22037/ghfbb.v6i1.332
Abstract
Optimum sample size is an essential component of any research. The main purpose of the sample size calculation is to determine the enough number of units needed to detect the unknown clinical parameters or the treatment effects or the association after data gathering. It is not uncommon for studies to be underpowered and failing to detect the existed treatment effects due to inadequate sample size. In this paper, we explain briefly the basic principles of sample size calculations in medical studies.
- Sample Size
- Medical Studies
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