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Bias, precision and statistical power of analysis of covariance in the analysis of randomized trials with baseline imbalance: a simulation study

BACKGROUND: Analysis of variance (ANOVA), change-score analysis (CSA) and analysis of covariance (ANCOVA) respond differently to baseline imbalance in randomized controlled trials. However, no empirical studies appear to have quantified the differential bias and precision of estimates derived from t...

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Bibliografiske detaljer
Main Authors: Egbewale, Bolaji E, Lewis, Martyn, Sim, Julius
Format: Artigo
Sprog:Inglês
Udgivet: BioMed Central 2014
Fag:
Online adgang:https://ncbi.nlm.nih.gov/pmc/articles/PMC3986434/
https://ncbi.nlm.nih.gov/pubmed/24712304
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1186/1471-2288-14-49
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