Table 3

 Relative (% baseline) bronchodilator responses

Healthy(n = 78)CF(n = 39)nCLD(n = 49)Asthma(n = 56)Wheeze(n = 66)
Data shown as median relative change with bronchodilator (10th, 90th percentile). Numbers in bold indicate a significant difference compared with the healthy group (p<0.05, multiple linear regression for each group adjusted for covariates).
CF, cystic fibrosis; nCLD, neonatal chronic lung disease; Rrs6, Rrs8, Rrs10, respiratory resistance at 6, 8 and 10 Hz; Xrs6, Xrs8, and Xrs10, respiratory reactance at 6, 8 and 10 Hz.
ΔRrs6 (%)−21.3 (−35.0, −3.1)−16.8 (−32.1, −0.6)−23.3 (−33.0, −9.2) −14.9 (−37.0, 8.8) −16.0 (−37.9, 8.4)
ΔXrs6 (%)27.4 (−7.5, 50.0)23.5 (−5.1, 46.7)31.9 (4.0, 49.8)27.0 (−13.8, 57.3)28.4 (−6.5, 59.9)
ΔRrs8 (%)−18.7 (−35.0, −4.4) −14.8 (−26.7, 4.1) −19.2 (−33.0, −5.2) −16.0 (−33.1, 9.7) −16.3 (−33.1, 8.9)
ΔXrs8 (%)30.9 (−1.6, 62.6)30.0 (−6.5, 56.1)38.8 (16.4, 63.2)30.3 (−7.8, 58.9)32.2 (−7.8, 60.9)
ΔRrs10 (%)−18.8 (−32.3, −3.7) −15.0 (−26.8, 4.3) −18.2 (−27.5, −4.9) −14.7 (−33.4, 4.5) −15.3 (−33.4, 3.0)
ΔXrs10 (%)29.3 (−0.2, 53.9)29.4 (0.3, 53.6)35.5 (14.3, 56.9)32.7 (−7.0, 57.5)33.9 (0.0, 58.4)