Design, data analysis and sampling techniques for clinical research
Karthik Suresh1, Sanjeev V Thomas, Geetha Suresh
1Department of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Trivandrum, India.
Abstract:
Statistical analysis is an essential technique that enables a medical research practitioner to draw meaningful inference from their data analysis. Improper application of study design and data analysis may render insufficient and improper results and conclusion. Converting a medical problem into a statistical hypothesis with appropriate methodological and logical design and then back-translating the statistical results into relevant medical knowledge is a real challenge. This article explains various sampling methods that can be appropriately used in medical research with different scenarios and challenges.
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