BS (95% CI) | p-value | |

Predicting 1-yr survival | ||

French registry equation | 0.146 (0.120–0.175) | |

PHC registry equation | 0.111 (0.060–0.168) | |

SCS | 0.092 (0.058–0.130) | |

Difference: SCS - French registry equation | -0.055 (-0.083– -0.024) | 0.001 |

Difference: SCS - PHC registry equation | -0.019 (-0.059–0.017) | 0.328 |

Predicting 2-yr survival | ||

French registry equation | 0.255 (0.210–0.302) | |

PHC registry equation | 0.189 (0.133–0.250) | |

SCS | 0.131 (0.091–0.175) | |

Difference: SCS - French registry equation | -0.124 (-0.176– -0.070) | <0.001 |

Difference: SCS - PHC registry equation | -0.058 (-0.122– -0.002) | 0.060 |

BS: Brier score; PHC: Pulmonary Hypertension Connection. A Brier Score of 0 indicates perfect prediction and 0.25 indicates a prediction equivalent to random chance.