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Table 1 A comparison of modelling strategies against the null strategy in the full Oudega DVT data

From: A computational approach to compare regression modelling strategies in prediction research

Strategy Victory rate (%) Median IQR Mean shrinkage
1. Heuristic shrinkage 56.9 −0.2 1.5 0.97
2. Split sample shrinkage 66.8 −0.2 0.7 0.98
3. 10-fold CV shrinkage 48.0 0.0 0.1 1.00
4. Bootstrap shrinkage 66.4 −0.3 1.0 0.97
5. Firth penalization 66.9 −0.2 0.6 -*
  1. Victory rates and associated metrics are presented. Values are based on 5000 comparison replicates. Abbreviations: IQR interquartile range, CV cross-validation
  2. *No mean shrinkage for the Firth penalization strategy is presented as shrinkage occurs during the coefficient estimation process