Sample size calculation in medical studies
Gastroenterology and Hepatology from Bed to Bench. 2013; 6 (1): 14-17
in English
| IMEMR
| ID: emr-127569
ABSTRACT
Optimum sample size is an essential component of any research. The main purpose of the sample size calculation is to determine the number of samples needed to detect significant changes in clinical parameters, treatment effects or associations after data gathering. It is not uncommon for studies to be underpowered and thereby fail to detect the existing treatment effects due to inadequate sample size. In this paper, we explain briefly the basic principles of sample size calculations in medical studies
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Index:
IMEMR (Eastern Mediterranean)
Main subject:
Case-Control Studies
/
Cross-Sectional Studies
/
Clinical Trials as Topic
/
Biomedical Research
Type of study:
Prevalence study
Language:
English
Journal:
Gastroenterol. Hepatol. Bed Bench
Year:
2013
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