DLCO ≤20% pred | DLCO >20% pred | p-value | |
Subjects n | 26 | 65 | |
ΔDLCO kPa | 0.35±0.86 | 0.03±1.10 | 0.04 |
ΔFEV1 L | 0.17±0.42 | 0.11±0.25 | 0.70 |
ΔRV L | −0.5±0.9 | −0.7±1.7 | 0.94 |
Δ6MWD m | 38.2±88.7 | 31.3±109.7 | 0.30 |
ΔmMRC points | −0.5±1.7 | −0.4±0.9 | 0.83 |
ΔSGRQ points | −12.4±16.4 | −6.0±11.5 | 0.29 |
Data are presented as mean±sd unless otherwise stated. DLCO: diffusing capacity of the lung for carbon monoxide; FEV1: forced expiratory volume in 1 s; RV: residual volume; 6MWD: 6-min walk distance; mMRC: Medical Research Council dyspnoea; SGRQ: St George's Respiratory Questionnaire.