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Fig. 1 | BMC Medical Research Methodology

Fig. 1

From: A comparison of multiple imputation methods for missing data in longitudinal studies

Fig. 1

Distribution of the bias in the estimated regression coefficients (i.e., mean changes in the QoL z-score associated with each covariate) for analysis model (1) across the 1000 simulated datasets following complete data, available data and 12 multiple imputation methods. Top and bottom panel show the distribution of the bias in the estimated regression coefficients for covariates with missing data whereas the middle panel shows the distribution of the bias associated with fully observed covariate

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