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Table 4 Model performance measures reported in the 78 studies

From: External validation of multivariable prediction models: a systematic review of methodological conduct and reporting

Performance measure n (%)
Calibration  
   Not assessed 53 (68)
   Calibration plot 11 (14)
   Hosmer-Lemeshow test 7 16 (21)
Discrimination  
   Not assessed/not reported 21 (27)
   c-index 57 (73)
ROC curve 23 (29)
Overall performance measures  
   Brier score 5 (6)
   R 2 13 (17)
Clinical utility (e.g. decision curve analysis) 1 (1)
  1. 7Including one study calculating Grønnesby and Borgan goodness-of-fit test (for survival data).