Table 1. Bronchoscopy Subjects Characteristics.
| Subject Characteristics | All Subjects | Non-asthmatic | Asthmatic | p-value |
|---|---|---|---|---|
| Number | 19 | 12 | 7 | - |
| Age (years) | 32.5±7.6 | 31.8±6.0 | 33.7±10.1 | 0.59 |
| Sex (female) (N [%]) | 9 [47%] | 5 [42%] | 4 [57%] | 0.54 |
| Height (cm) | 171±10 | 168±11 | 175±8 | 0.14 |
| BMI (kg/m2) | 25.4±5.0 | 24.8±3.2 | 26.5±7.3 | 0.49 |
| FEV1 (L) | 3.5±0.8 | 3.8±0.8 | 3.1±0.6 | 0.05 |
| FEV1 (% predicted) | 97.9±15.1 | 104.3±14.4 | 87.1±9.3 | 0.01 |
| FVC (L) | 4.6±1.0 | 4.6±1.0 | 4.6±1.1 | 0.94 |
| FVC (% predicted) | 102.2±12.7 | 104.9±13.2 | 97.4±11.3 | 0.22 |
| FEV1/FVC ratio | 77.5±10.0 | 82.5±4.4 | 69.0±11.3 | 0.001 |
| BSA (m2) | 1.85±0.23 | 1.79±0.21 | 1.95±0.25 | 0.15 |
| Atopy (N [%]) | 15 [79%] | 8 [67%] | 7 [100%] | 0.09 |
| VE (L/min/m2 BSA) with 0 ppb O3 | 22.1±2.2 | 22.6±2.0 | 21.2±2.3 | 0.18 |
| VE (L/min/m2 BSA) with 100 ppb O3 | 22.2±3.5 | 21.8±3.3 | 22.9±3.9 | 0.51 |
| VE (L/min/m2 BSA) with 200 ppb O3 | 22.0±3.4 | 22.7±2.8 | 20.8±4.1 | 0.23 |
Data presented as mean±SD. BMI: body mass index; FEV1: forced expiratory volume in 1 second; FVC: forced vital capacity; VE: average minute ventilation during exercise; BSA: body surface area; O3: ozone. P-value is for comparison between asthmatic and non-asthmatic subjects.