Skip to main content
Fig. 2 | BMC Medical Research Methodology

Fig. 2

From: Does pattern mixture modelling reduce bias due to informative attrition compared to fitting a mixed effects model to the available cases or data imputed using multiple imputation?: a simulation study

Fig. 2

Slope coefficient bias for smoking status and education categories with memory cognitive function outcome when imputing the outcome together with either smoking status or education. a - % bias, b - mean square error ratio, c – coverage. a - % bias closest to zero indicates least bias approach. b - Ratios relative to available case analysis MSE. Ratio less than one indicates less bias compared to the available case analysis. c - Coverage close to 95% indicate proper control of the type I error rate for testing a null hypothesis of no effect

Back to article page

BMC Medical Research Methodology

ISSN: 1471-2288

Contact us