Pulmonary function parameters for patient I2 and her daughter II4
| I2 | II4 | |
| FEV1 L | 1.77 (95.7) | 2.59 (103) |
| FVC L | 2.3 (102.6) | 3.12 (106.5) |
| FEV1 % VCmax | 76.8 | 82.9 |
| RV L | 1.91 (97.1) | 1.97 (131.6) |
| TLC L | 4.14 (90.5) | 4.87 (108.1) |
| TL,CO mmol·min−1·kPa−1 | 4.23 (63.4) | 7.31 (91.8) |
| KCO mmol·min−1·kPa−1·L−1 | 1.34 (91.9) | 1.81 (102.6) |
Percentage of predicted normal values are given in parentheses. FEV1: forced expiratory volume in 1 s; FVC: forced vital capacity; VC: vital capacity; RV: residual volume; TLC: total lung capacity; TL,CO: transfer factor of the lung for carbon monoxide; KCO: transfer coefficient.