Table 3

Pulmonary function during placebo and salbutamol intervention in non-asthmatic, healthy individuals

P values*
Dynamic spirometry
  FEV1 (%)110±13109±13116±13<0.01
   FVC (%)117±12116±12118±120.06
  FEV1/FVC ratio0.80±0.060.80±0.060.84±0.06<0.01
   PEF (%)118±18117±17122±160.01
Impulse oscillometry
  R5 (%)105±26102±2889±26<0.01
  R20 (%)113±25112±2796±24<0.01
  • Data are reported as mean percentage of predicted values with SD.

  • *Difference in effect from placebo and salbutamol intervention.

  • D5-20, part of the total resistance originating from the small conducting airways; FEV1, forced expiratory volume in 1 s; FVC, forced vital capacity; PEF, peak expiratory flow; R5, total resistance in the conducting airways; R20, resistance in the large conducting airways.