Spirometry and exhaled nitric oxide (FENO) in 41 individuals with asthma and/or symptoms suggesting asthma assessed for fitness for recreational scuba diving
| Male | Female | |
| FEV1 (L) | 3.41±0.69 | 3.26±0.46 |
| FEV1 (% predicted) | 92.4±15.7 | 98.8±12.8 |
| FVC (L) | 4.46±0.95 | 4.07±0.63 |
| FVC (% predicted) | 98.9±12.1 | 104.4±13.4 |
| FEV1:FVC | 0.78±0.08 | 0.80±0.04 |
| FENO (ppb) | 42±31 | 22.9±17.9 |
The results are given in mean±SD.
FENO, fractional exhaled nitric oxide; FEV1, forced expiratory volume in 1 s; FVC, forced vital capacity; ppb, parts per billion.