Table 2 Improvements in cycle endurance time, 6-min walking distance and St George Respiratory Questionnaire following pulmonary rehabilitation
Post-rehabilitation changes
Immediate(n = 157)1 year(n = 106)
ΔCET (s)198 (352)†137 (335)*
Δ6MWT (m)25 (52)†−5 (58)
ΔSGRQ Symptoms−6.1 (17.1)†−6.3 (22.5)‡
ΔSGRQ Activity−5.9 (13.2)†−2.9 (15.6)
ΔSGRQ Impact−7.4 (12.7)†−6.0 (14.5)†
ΔSGRQ Total−6.9 (10.1)†−5.1 (12.0)†

  • Values are mean (SD).

  • CET, cycle endurance test; 6MWT, 6-min walking test; SGRQ, St George Respiratory Questionnaire.

  • A change of −4 or less on the SGRQ is considered clinically significant.

  • *p<0.05; †p<0.001; ‡p<0.005.