| Literature DB >> 8614740 |
Abstract
This paper is a compendium of exact and asymptotic formulae and tables for estimating the sample size in a clinical trial with two treatment groups and a dichotomous outcome. The paper provides separate formulae for equal and unequal treatment group sizes, formulae for the calculation of power given the sample size, and complete references for all formulae and tables cited.Mesh:
Year: 1996 PMID: 8614740 DOI: 10.1002/(SICI)1097-0258(19960115)15:1<1::AID-SIM134>3.0.CO;2-E
Source DB: PubMed Journal: Stat Med ISSN: 0277-6715 Impact factor: 2.373