Additional file 1 of Mapping of disease-specific Oxford Knee Score onto EQ-5D-5L utility index in knee osteoarthritis

Additional file 1. Appendix 1: EQ-5D-5L in estimation sample. Appendix 2: EQ-5D-5L in external validation sample. Appendix 3: Correlation among between domains of the EQ-5D-5L and questions of OKS. Appendix 4: Distribution of EQ-5D-5 L utility. Appendix 5: Characteristics of the Estimation sample. Appendix 6: Characteristics of the External validation sample. Appendix 7: Description of EQ-5D-5L Utility and Total OKS Score. Appendix 8: Mobility RFE important predictors. Appendix 9: Choosing of best model of Mobility. Appendix 10: Self-Care RFE important predictors. Appendix 11: Choosing of best model of Self-Care. Appendix 12: Usual Activities RFE important predictors. Appendix 13: Choosing of best model of Usual Activities. Appendix 14: Pain/Discomfort RFE important predictors. Appendix 15: Choosing of best model of Pain/Discomfort. Appendix 16: Anxiety/Depression RFE important predictors. Appendix 17: Choosing of best model of Anxiety/Depression. Appendix 18: Rankings of OKS questions across the five domains of EQ-5D-5L by recursive feature eliminations in the Estimation sample. Appendix 19: Model evaluation in whole external validation sample.