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Year : 2020  |  Volume : 3  |  Issue : 2  |  Page : 317-322

Basics of statistics-3: Sample size calculation – (i)

Department of Medical Oncology and Hemato-Oncology, Narayana Superspeciality Hospital, Gurugram, Haryana, India

Correspondence Address:
H S Darling
Narayana Superspeciality Hospital, Gurugram - 122 002, Haryana
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/CRST.CRST_100_20

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Introduction: From a practicing oncologist's perspective, sample size calculation is a very intriguing aspect of medical statistics. Methods: Basic aspects of sample size calculation in relevant case scenarios are discussed. Results: The formulae are illustrated with examples for easier understanding. Discussion: This article is a brief account of sample size calculation methods in different clinical research scenarios. The derivation of formulae is beyond the scope of this article. The discussion is kept simple by illustrations matching real life studies. More complex methods will be discussed in the next session of this series.

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