Table 2

 Absolute bronchodilator responses

Healthy(n = 78)CF(n = 39)nCLD(n = 49)Asthma(n = 56)Wheeze(n = 66)
Data shown as median absolute change with bronchodilator (10th, 90th percentiles). 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 (hPa.s/l)−1.51 (−3.69, −0.17)−1.46 (−3.18, −0.04)−2.44 (−4.14, −0.98) −1.17 (−4.10, 0.58) −1.28 (−4.03, 0.51)
ΔXrs6 (hPa.s/l)0.57 (−0.27, 1.66)0.86 (−0.16, 2.05)1.49 (0.15, 3.05)0.84 (−0.21, 2.30)0.84 (−0.14, 2.33)
ΔRrs8 (hPa.s/l)−1.44 (−2.73, −0.30) −1.30 (−3.13, 0.28) −1.94 (−3.78, −0.54) −1.09 (−3.39, 0.59) −1.09 (−3.39, 0.53)
ΔXrs8 (hPa.s/l)0.75 (−0.04, 1.82)0.75 (−0.17, 2.06)1.51 (0.47, 2.98)0.79 (−0.13, 2.47)0.79 (−0.13, 2.47)
ΔRrs10 (hPa.s/l)−1.34 (−2.55, −0.21) −1.24 (−2.62, 0.30) −1.76 (−3.03, −0.46) −0.89 (−2.90, 0.29) −0.95 (−2.90, 0.24)
ΔXrs10 (hPa.s/l)0.73 (−0.00, 2.03)0.73 (0.00, 1.99)1.61 (0.36, 3.08)0.67 (−0.12, 2.22)0.71 (0.00, 2.14)