LCI | |

L | -0.81 |

Predicted M | 5.99 + (73.85 × height^{−1}) |

S | 0.08 |

ULN | Predicted × ((1.96 × 0.08 × -0.81) + 1)^{1/-0.81} |

FRC_{MBW} | |

L | 0.21 |

Predicted M | exp (-11.07 + (2.12 × ln height) + (0.27 × age^{0.5}) + (0.04 × sex)) |

S | exp (-1.67 + 159.61 × height^{−2}) |

ULN | Predicted × ((1.96 × S × 0.21) + 1)^{1/0.21} |

Based on these equations, the upper limit of normal (ULN) for LCI can be simplified to predicted LCI × 1.18, whereas that for FRC

_{MBW}becomes (0.36 ×*S*+ 1)^{5.37}× predicted FRC_{MBW}. For simplicity, the factors are displayed to two decimal places. For calculation of z-scores and the ULN, the full equations presented in table S3 should be used.*L*: lambda (skewness);*M*: mu (mean);*S*: sigma (coefficient of variation); height: height in cm; age: age in years; sex: female = 0, male = 1.