Additional file 1: of The calibrated model-based concordance improved assessment of discriminative ability in patient clusters of limited sample size David van Klaveren Ewout Steyerberg Mithat Gรถnen Yvonne Vergouwe 10.6084/m9.figshare.8233727.v1 https://springernature.figshare.com/articles/journal_contribution/Additional_file_1_of_The_calibrated_model-based_concordance_improved_assessment_of_discriminative_ability_in_patient_clusters_of_limited_sample_size/8233727 Table S1. Cluster sizes and performance measures across 19 European centers of the CRASH trial. Table S2. Cluster sizes and performance measures at external validation across 36 non-European centers of the CRASH trial. Table S3. Simulation characteristics (2000 replications) of c-index and c-mbc across 40 centers of 200 patients without between center heterogeneity in intercept and slope. Table S4. Simulation characteristics (2000 replications) of c-index and c-mbc across 40 centers of 400 patients. Table S5. Simulation characteristics (2000 replications) of c-index and c-mbc across 40 centers of 200 patients when the regression model was misspecified. Table S6. Simulation characteristics (2000 replications) of c-index and c-mbc across 40 centers of 200 patients when the calibration slopes were not normally distributed. (DOCX 92 kb) 2019-06-06 05:00:00 Prediction model Model performance Discrimination Concordance Clustered data Multilevel regression Traumatic brain injury