Linear regression models for lung volume subdivision calculation
| Lung volume | n | Model | Multiple R2 | Adjusted R2 | P value | F |
| TLC | 20 | PLAinsp (cm2)×0.008+height (cm)×0.079–10.7 | 0.77 | 0.75 | <0.001 | 30 |
| IC | 18 | (PLAinsp–PLAte) (cm2)×0.00011+height (cm)×0.030–2.27 | 0.56 | 0.50 | 0.002 | 10 |
| FRC | 18 | (PLAinsp–IC area) (cm2)×0.00011+height (cm)×0.012 | 0.83 | 0.81 | <0.001 | 36 |
FRC, functional residual capacity; IC, inspiratory capacity; PLA, projected lung area; TLC, total lung capacity.