Table 2

Outcomes according to intervention and control group allocation

BaselineAfter interventionEffect estimate
Intervention (n=178)Control (n=172)Intervention (n=143)Control (n=134)Estimate* (95% CI)p ValueICC
CRQ
 Total19.03 (4.16)17.8 (4.56)20.82 (3.88)19.1 (4.63)1.11(0.35 to 1.87)<0.01<0.1
 Dyspnoea3.74 (1.20)3.45 (1.39)4.42 (1.36)3.85 (1.45)0.49(0.20 to 0.78)<0.01<0.001
 Fatigue4.33 (1.31)4.05 (1.48)4.79 (1.31)4.33 (1.47)0.25(−0.002 to 0.51)0.07<0.001
 Emotional5.39 (1.22)5.01 (1.34)5.62 (1.19)5.24 (1.30)0.19(−0.02 to 0.40)0.10<0.001
 Mastery5.42 (1.31)5.25 (1.38)5.94 (1.11)5.59 (1.30)0.19(−0.05 to 0.44)0.150.032
 Physical4.09 (1.12)3.77 (1.23)4.62 (1.10)4.12 (1.29)0.37(0.14 to 0.60)<0.01<0.001
 Psychological5.41 (1.16)5.13 (1.26)5.78 (1.06)5.41 (1.22)0.18(−0.02 to 0.39)0.100.009
 Incremental Shuttle Walk (m)279 (152)272 (142)308 (152)299 (162)7.89(−9.56 to 25.34)0.390.02
 Self-efficacy7.24 (1.78)6.85 (2.02)7.95 (1.49)7.36 (1.79)0.36(−0.14 to 0.86)0.180.176
  • Values are means (SD).

  • *Baseline and covariate adjusted mean difference (Intervention—Control).

  • CRQ, Chronic Respiratory Questionnaire; ICC, intraclass correlation coefficient.