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Fig. 4 | BMC Medical Research Methodology

Fig. 4

From: Predictor characteristics necessary for building a clinically useful risk prediction model: a simulation study

Fig. 4

Overall model performance (measured by the proportion of variability in the outcome explained by the predictors, or Nagelkerge’s r2) of risk prediction models according to simulated predictor characteristics. The original risk prediction model was augmented with simulated predictors with prevalence from 5 to 40 % and odds ratios ranging from 1 to 16: a one added simulated predictor per model; b three added simulated predictors per model; c five added simulated predictors per model

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