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

Articles with risk groups (n = 36) |
Articles with PI but no risk groups (n = 6**) | |
---|---|---|

Presentation of discrimination of model predictions† | ||

KM for risk groups | 34 | NA |

Nomogram | 2 | 4 |

Other graphical | 2 | 2 |

% survival probability at fixed time†† | 22 | 0 |

Index of discrimination (see below) | 9 | 2 |

Log rank | 17 | NA |

Unspecified P-value
| 6 | 0 |

No presentation | 0 | 0 |

Index of discrimination$ | ||

c-index | 7 | 1 |

R squared or goodness of fit or Brier score | 1 | 1 |

D | 0 | 0 |

Other - K (Begg), sensitivity and specificity | 2 | 0 |

Reclassification of patient risk | 0 | 0 |

Calibration | ||

Yes | 1 | 1 |

No | 35 | 5 |

Model usability from article$$ | ||

Prognostic score or risk group can be assigned | 33 | 6 |

Survival presented for risk group and/or prognostic score | 36 | 5 |

Instructions for use suitable for physicians included | 3 | 3 |