Table 4

Clinical, functional and symptomatic measures of the COPD group

FEV1% predicted (n=23)52.51±20.9648.0031.60
6mwd (m) (n=14)423.25±55.41432.0073.13
PaO2 (kPa) (n=24)10.72±2.0710.602.15
PaCO2 (kPa) (n=24)5.09±0.475.010.67
MRC dyspnoea scoren p (n=21)21
SGRQ (n=22)51.65±19.9849.6630.33
  • 6mwd, 6 min walking distance; COPD, chronic obstructive pulmonary disease; FEV1, forced expiratory volume in 1 s; MRC, Medical Research Council; np, non-parametric; PaCO2, partial pressure of carbon dioxide in arterial blood; PaO2, partial pressure of oxygen in arterial blood; SGRQ, St George’s Respiratory Questionnaire.