TABLE 2.
Baseline oscillometry characteristics
| COPD (n=42) | Control (n=14) | p-value | |
|---|---|---|---|
| Seated Rrs5 (cmH2O·L−1·s−1) | 4.88 (3.77–6.67) | 2.71 (2.42–3.67) | <0.001 |
| Seated Rrs5 (Z-score) | 1.59±1.73 | −0.01±0.87 | <0.001 |
| Supine Rrs5 (cmH2O·L−1·s−1) | 6.4 (4.62–8.28) | 3.82 (3.35–5.25) | 0.005 |
| Supine Rrs5 (Z-score) | 2.54±1.35 | 1.39±0.7 | 0.003 |
| Seated Xrs5 (cmH2O·L−1·s−1) | −3.27 (−5.21– −2.32) | −1.26 (−1.59– −0.84) | <0.001 |
| Seated Xrs5 (Z-score) | −4.62±3.77 | −0.04±1.15 | <0.001 |
| Supine Xrs5 (cmH2O·L−1·s−1) | −6.04 (−8.12– −3.75) | −1.61 (−3.06– −1.37) | <0.001 |
| Supine Xrs5 (Z-score) | −7.72±3.91 | −2.17±1.77 | <0.001 |
| Seated ΔXrs5 (cmH2O·L−1·s−1) | 1.59 (0.42–3.59) | −0.14 (−0.30–0.04) | 0.001 |
Values are mean±sd or median (interquartile range). Bold indicates statistical significance. Rrs5: respiratory resistance at 5 Hz; Xrs5: respiratory reactance at 5 Hz; ΔXrs5: difference between inspiratory and expiratory reactance.