Table 2

Effect of β2 agonist administration on V′maxFRC, expressed in ml/s and Z scores

Mean V‘maxFRC ml/s (range)Mean Δ V‘maxFRC % from baseline (95% CI)Mean V‘maxFRC Z score (range)Mean Δ V‘maxFRC Z score (95% CI)
Pre β2 agonistPost β2 agonistPost β2 agonistPre β2 agonistPost β2 agonistPost β2 agonist
Malacia (n=8)56.2 (17 to 89)47.5 (32 to 91)−6.3 (−40.7 to 28.0)−2.64 (−3.58 to −1.41)−2.75 (−3.74 to −1.38)−0.10 (−0.26 to 0.05)
Wheeze (n=19)167.1 (32 to 420)139.8 (32 to 344)−13.1 (−25.1 to −1.1)−1.50 (−3.94 to 1.72)−1.83 (−4.02 to 0.44)−0.33 (−0.55 to −0.11)