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.
| Healthy | CF | nCLD | Asthma | Wheeze | |
|---|---|---|---|---|---|
| |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%) |
CF, cystic fibrosis; nCLD, neonatal chronic lung disease; |ΔRrs|, refers to the absolute change in Rrs.