Table 2

Spirometry and exhaled nitric oxide (FENO) in 41 individuals with asthma and/or symptoms suggesting asthma assessed for fitness for recreational scuba diving

FEV1 (L)3.41±0.693.26±0.46
FEV1 (% predicted)92.4±15.798.8±12.8
FVC (L)4.46±0.954.07±0.63
FVC (% predicted)98.9±12.1104.4±13.4
FENO (ppb)42±3122.9±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.