From: Reporting methods in studies developing prognostic models in cancer: a review

% (n = 47) articles | |
---|---|

Coding of variables in model | |

Coding explicit for all candidate variables | 68 (32) |

Coding explicit for all variables in final model‡ | 70 (33) |

Coding of continuous candidate variables | |

All continuous | 2 (1) |

All categorised/dichotomised | 51 (24) |

Combination of continuous and categorised variables | 19 (9) |

No continuous candidate variables | 0 (0) |

Unclear/not reported | 28 (13) |

Median (IQR)
(range)
| |

Number of variables | |

Candidates used to develop model* (n = 46) | 11 (7 to 14) (2 to 27) |

Included in final model** (n = 44) | 4 (3 to 6) (2 to 12) |