Additional file 1.
This additional file is organized in three parts: Appendix 1. presents details on the modelling steps as well as a summary of variables tested, excluded, and included by health indicator Equations for baseline and final models are given in Appendix 2. The results for full models with all covariates and level 2 variances are presented in Appendix 3.
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Béatrice et al. BMC Pediatrics 2012 12:141 doi:10.1186/1471-2431-12-141