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Table 4 Model performance on validation data

From: Reporting performance of prognostic models in cancer: a review

 

Articles with risk groups

(n = 16)

Presentation of discrimination of model predictions

 

   KM for risk groups

1

   Other graphical

0

   % survival probability at fixed time

2

   Index of discrimination (see below)

11

   Log rank

1

   Unspecified P-value

0

No presentation of discrimination

4

Index of discrimination$

 

   c-index

10

   R squared or goodness of fit

4

   D

0

   Other - k (Begg), SEP (Graf)

2

   Reclassification of patient risk

0

Calibration

 

   Yes

2

   No

14

  1. † More than one option possible
  2. $ Two studies reported two indices of discrimination, one study three indices