Double-adjustment in propensity score matching analysis: choosing a threshold for considering residual imbalance
Abstract Background Double-adjustment can be used to remove confounding if imbalance exists after propensity score (PS) matching. However, it is not always possible to include all covariates in adjustment. We aimed to find the optimal imbalance threshold for entering covariates into regression. Meth...
Main Authors: | , , , , , , |
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Format: | Article |
Language: | English |
Published: |
BMC
2017-04-01
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Series: | BMC Medical Research Methodology |
Subjects: | |
Online Access: | http://link.springer.com/article/10.1186/s12874-017-0338-0 |