Table 4

 Number of subjects in each group showing a significant relative bronchodilator response as determined by the limits of the healthy group for resistance (Rrs) and reactance (Xrs) at 6, 8 and 10 Hz

HealthyCFnCLDAsthmaWheeze
CF, cystic fibrosis; nCLD, neonatal chronic lung disease; |ΔRrs|, refers to the absolute change in Rrs.
|ΔRrs6| >42%3/68 (4.4%)0/36 (0.0%)1/49 (2.0%)2/53 (3.8%)3/61 (4.9%)
|ΔXrs6| >61%3/68 (4.4%)1/36 (2.8%)0/49 (0.0%)2/53 (3.8%)5/61 (8.2%)
|ΔRrs8| >37%3/78 (3.8%)1/38 (2.6%)2/49 (4.1%)1/55 (1.8%)2/65 (3.1%)
|ΔXrs8| >67%4/78 (5.1%)2/38 (5.3%)2/49 (4.1%)2/55 (3.6%)3/65 (4.6%)
|ΔRrs10| >39%3/78 (3.8%)0/38 (0.0%)0/49 (0.0%)1/56 (1.8%)1/66 (1.5%)
|ΔXrs10| >63%3/78 (3.8%)1/38 (2.6%)3/49 (6.1%)2/56 (3.6%)2/66 (3.0%)