Univariate statistics for Cox regression: overall survival | |||||||
---|---|---|---|---|---|---|---|

Variable | Mean (SD) | Hazard ratio | Lower 0.95 confidence limit | Upper 0.95 confidence limit | n | Events | P |

Node stage | — | 1.84 | 1.17 | 2.87 | 73 | 28 | 0.01 |

Tumor stage | — | 1.33 | 0.89 | 1.98 | 70 | 26 | 0.17 |

Age | 61.1 (10.4) | 1.10 | 0.81 | 1.50 | 73 | 28 | 0.55 |

FDG SUV_{max} | 10.8 (4.5) | 1.44 | 0.88 | 2.37 | 52 | 15 | 0.14 |

T/B_{max} | 1.6 (0.46) | 1.68 | 1.22 | 2.32 | 73 | 28 | 0.002 |

sHV* | 2.8 (2.4) | 1.46 | 1.01 | 2.11 | 69 | 25 | 0.04 |

NOTE: For the continuous variables, the hazard ratio and the confidence intervals should be interpreted as the increase in survival risk associated with an increase of 1 SD of the independent variables.

*P*values for significant variables are in bold type.↵* For statistical purposes only, a square root transformation was used on the HV data (sHV).