Table 2.
Specific conductance and spirometry
| Variable | N | A | O | OA | P Value |
|---|---|---|---|---|---|
| sGaw, s−1·cmH2O−1 | 0.22±0.02 | 0.17±0.01 | 0.20±0.01 | 0.16±0.01 | 0.001 |
| FEV1, liters | 3.19±0.13 (97.4±2.4) | 2.52±0.12 (83.0±2.7) | 2.57±0.13 (83.8±2.7) | 2.08±0.09 (74.2±2.6) | <0.001 (<0.001) |
| FEF25-75, l/min | 3.33±0.19 (90.6±4.1) | 1.94±0.14 (58.1±3.2) | 2.40±0.16 (77.7±5.3) | 1.82±0.13 (60.6±3.9) | <0.001 (0.001) |
| FVC, liters | 3.98±0.15 (100.2±2.8) | 3.52±0.16 (91.2±2.5) | 3.26±0.15 (86.9±2.6) | 2.82±0.11 (81.1±2.5) | <0.001 (<0.001) |
Data are means ± SE. sGaw, specific airway conductance; FEV1, 1-s forced expiratory volume; FEF25-75, forced expiratory flow in the mid vital capacity; FVC, forced vital capacity. Percentages of predicted normal values are in parentheses. P values are derived from between-group comparisons.