Variable | Mean | SD | Range (0–100%) | Correlation to BE (p value) | Correlation to PaCO_{2} (p value) |
---|---|---|---|---|---|

Age (years) | 52.0 | 8.9 | 26–74 | +0.06 (0.63) | +0.17 (0.17) |

Weight (kg) | 136.3 | 29.5 | 77.8–229 | +0.19 (0.11) | +0.18 (0.13) |

BMI (kg/m^{2}) | 47.2 | 9.8 | 32.3–73.9 | +0.20 (0.09) | +0.21 (0.08) |

Neck (cm) | 46.5 | 4.8 | 38–58 | +0.15 (0.22) | +0.28 (0.02) |

Waist (cm) | 134.8 | 20.9 | 102–180 | +0.21 (0.08) | +0.22 (0.07) |

Hip (cm) | 133.9 | 20.2 | 101–177 | +0.18 (0.13) | +0.18 (0.15) |

Impedance (ohms) | 382.3 | 86.9 | 194–704 | −0.18 (0.15) | −0.27 (0.03) |

Visceral adipose tissue mass (kg) | 3.42 | 1.17 | 1.31–5.64 | +0.50 (0.001) | +0.36 (0.02) |

Mean (SD) for variables in the ‘distribution of fat’ domain, with range (0–100%). The obesity measures shown are those exhibiting the highest correlations with BE and PaCO

_{2}(p values in brackets). There were no other significant correlations between obesity measures and either BE or PaCO_{2}. Note, visceral adipose tissue estimates from DXA were only available for participants with BMI ≤40, n=43.BE, base excess; BMI, body mass index; DXA, dual-energy X-ray absorptiometry; PaCO

_{2}, arterial partial pressure of carbon dioxide.