Pre-induction values of exhaled nitric oxide fraction (FeNO) and of functional indices

ControlsRhinitisAsthmap-value controls–rhinitisp-value controls–asthmap-value rhinitis–asthma
FEV1 % pred104.9±11.4103.7±13.298.9±12.10.8040.1530.190
FeNO ppb9.9 (6.1–16)36.2 (19.3–68.1)43.2 (19.4–96.5)<0.001<0.0010.359
SHe %·L−11.28±0.541.34±0.622.29±1.960.7740.0270.058
SSF6 %·L−11.84±0.942.21±0.962.83±1.050.1080.0040.232

Data are presented as mean±sd or geometric mean (geometric interval) (geometric mean is antilog(mean) and geometric interval is (antilog(mean–sd) – antilog(mean+sd)) of the log-transformed FeNO), unless otherwise stated. FEV1: forced expiratory volume in 1 s; S: slope; He: helium; SF6: sulfur hexafluoride.