Citation Information :
Kumar A, Pal R, Nagi M, Kaur M, Kaur S. Superiority Trial: Sample Size Calculation and its Interpretation in Health Research. J Postgrad Med Edu Res 2023; 57 (3):131-136.
Sample size calculation in any randomized clinical trial is an essential step to avoid over- and underestimation of the outcomes. Health researchers should prior estimate the sample size which helps in the validity and reliability of the superiority trial. This paper highlights the step-by-step calculation of sample size in a superiority trial using appropriate and simple formulas and its interpretation with suitable examples in different conditions so that health researchers can better understand this important part of a clinical trial.
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