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# Table 2 Comparison of the estimates provided by the joint mixed model approach and the curve-by-curve approach

Parameter | Disease stage | Joint mixed model | Curve-by-curve | ||
---|---|---|---|---|---|

Estimate | Std. error | Estimate | Std. error | ||

τ
_{1}
| II | 84.15 | 10.14 | 82.42 | 18.15 |

III | 74.97 | 8.43 | 82.28 | 24.35 | |

IV | 97.12 | 15.78 | 128.45 | 32.58 | |

\(\dot {\mathrm {V}}\mathrm {O}_{2}rest\) | II | 282.9 | 13.27 | 284.52 | 13.62 |

III | 288.82 | 11.09 | 284.04 | 18.27 | |

IV | 266.79 | 19.25 | 283.08 | 24.44 | |

\(\dot {\mathrm {V}}\mathrm {O}_{2}ss\) | II | 1029.6 | 55.17 | 1007.7 | 58.46 |

III | 948.53 | 46.14 | 940.83 | 78.43 | |

IV | 737.07 | 79.94 | 815.41 | 104.93 | |

τ
_{2}
| II | –3.77 | 0.28 | –4.68 | 0.41 |

III | –2.91 | 0.23 | –3.74 | 0.54 | |

\(\dot {\mathrm {V}}\mathrm {O}_{2}recovery\) | II | 276.03 | 7.51 | 301.3 | 18.8 |

III | 242.53 | 9.8 | 276.03 | 25.22 | |

IV | 209.71 | 15.03 | 294.65 | 33.75 | |

T\(_{1/2} \dot {\mathrm {V}}\)O_{2}
| II | 129.14 | 9.9 | 127.65 | 9.53 |

III | 134.7 | 8.46 | 136.51 | 12.79 | |

IV | 178.82 | 15.27 | 161.6 | 17.11 |