Considerations on sample size and power calculations in randomized clinical trials.
review · Level V
Where this comes from
- Record sourced from PubMed, PMID 14608320.
- No licence information is recorded for this record.
- Because redistribution is not established, this page shows the abstract only. Follow the links below for the full text.
Abstract
Many studies in orthopaedics and sports medicine have not considered sample size or statistical power as important issues in study design. This article addresses the importance of a sample size calculation in randomized clinical trials and the components of the calculations that researchers must consider in their preliminary planning of an investigation. The types of data being collected, level of significance, types I and II errors, and power are also addressed.
Medical subject headings
- Randomized Controlled Trials as Topic
- Sample Size