Descriptive characteristics and unadjusted outcomes of patients with COPD for each measure of the standard set
| 6MWT | CCQ | GPE-DV | HHD | MRC | |
| Female patients | 1344 (51.1%) | 1786 (52.1%) | 636 (50.6%) | 223 (51.3%) | 1237 (52.7%) |
| Age, years | 67.8 (9.2) | 68.1 (9.4) | 68.2 (9.4) | 68.0 (9.2) | 68.2 (9.3) |
| Treatment episodes with baseline scores | 2628 | 3427 | N.A. | 435 | 2348 |
| Treatment episodes with end scores | 1822 | 2408 | 1256 | 218 | 1385 |
| Range of scores on each measure | 6–780 m | 0–6 points | 1–7 points | 131–542 Nm | 1–5 points |
| Baseline scores+ | 370.8 m (126.3 m) | 2.4 points (0.9) | N.A. | 284.2 Nm (96.4 Nm) | 3.0 points (1.1) |
| End scores | 373.5 m (130.3 m) | 2.2 points (0.9) | 3.5 points (1.1) | 298.4 Nm (95.5) | 3.0 points (1.1) |
| Change (Tend–T0) | 2.7 (86.8) | −0.1 (0.8) | N.A.# | 8.4 (50.9) | 0.2 (1.3) |
| MCID improvement | 533 (28.7%)§ | 818 (34.0%)ƒ | N.A.# | 99 (45.4%)## | N.A.¶ |
| MCID stabilisation | 807 (44.3%)§ | 1052 (43.7%)ƒ | N.A.# | 43 (19.9%)## | N.A.¶ |
| MCID deterioration | 490 (26.9%)§ | 537 (22.3%)ƒ | N.A.# | 76 (34.7%)## | N.A.¶ |
| Physical therapists who provided data | 145 (63.3%) | 202 (88.2%) | 117 (51.0%) | 46 (20.0%) | 168 (46.7%) |
| Practices that provided data | 86 (62.8%) | 126 (92.0%) | 72 (52.6%) | 28 (20.4%) | 107 (78.1%) |
| Practices that provided ≥10 cases | 44 (19.2%) | 61 (26.6%) | 35 (15.3%) | 10 (4.4%) | 43 (18.8%) |
| Patients included in the multilevel analysis | 1679 (36.0%) | 2201 (47.3%) | 1110 (23.8%) | 160 (3.4%) | 1226 (26.4%) |
Data are presented as means (sd) or numbers and percentages of patients with baseline measures.
6MWT: 6-min walk test; CCQ: Clinical COPD Questionnaire; GPE-DV: Global Perceived Effect – Dutch Version; HHD: hand-held dynamometer; MRC: Medical Research Council Dyspnoea Scale; MCID: minimal clinically important difference; N.A: not applicable. #GPE-DV was only analysed at the end of the treatment. ¶The MCID for the MRC is yet to be established [24]. +For treatment episodes with end scores. §For the multilevel analysis of the 6MWT, we used an MCID of ± ≥30 m [33]. ƒFor the multilevel analysis of the CCQ, we used an MCID of ± ≥0.4 points [34]. ##For the multilevel analysis of the HHD, we used an MCID of ± ≥7.5 Nm [35].