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Simple Power and Sample Size Estimation for Non-Randomized Longitudinal Difference in Differences Studies

Intervention effects on continuous longitudinal normal outcomes are often estimated in two-arm pre-post interventional studies with b≥1 pre- and k≥1 post-intervention measures using “Difference-in-Differences” (DD) analysis. Although randomization is preferred, non-randomized designs are often neces...

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Bibliographic Details
Published in:J Biom Biostat
Main Authors: Hu, Yirui, Hoover, DR
Format: Artigo
Language:Inglês
Published: 2018
Subjects:
Online Access:https://ncbi.nlm.nih.gov/pmc/articles/PMC6663085/
https://ncbi.nlm.nih.gov/pubmed/31360594
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