Outcome measurement scores at baseline, 8 weeks and 6 months
| Outcome measure | Baseline means (SD) | 8-week means (SD) | 6-month means (SD) | |||
| Intervention (n=22) | Control (n=24) | Intervention (n=22) | Control (n=24) | Intervention (n=22) | Control (n=24) | |
| PIH scale | 73.9 (16.3) | 76.5 (14.3) | 76.5 (14.5) | 69.5 (10.6) | 76.0 (13.4) | 73.0 (15.0) |
| MSPSS | 5.3 (1.1) | 5.7 (0.98) | 4.9 (1.6) | 5.2 (1.6) | 4.9 (1.3) | 5.4 (1.4) |
| WOMAC total* | 32.6 (18.8) | 41.9 (19.5) | 34.0 (17.8) | 43.5 (19.4) | 34.7 (18.5) | 41.3 (17.8) |
| WOMAC pain* | 6.8 (4.5) | 9 .0 (4.2) | 7.5 (3.9) | 9.6 (4.1) | 7.7 (4.0) | 8.9 (3.2) |
| WOMAC stiffness* | 3.7 (1.6) | 4.3 (1.9) | 3.3 (1.3) | 4.3 (1.6) | 3.4 (1.3) | 4.0 (1.7) |
| WOMAC function* | 22.1 (14.0) | 28.5 (14.6) | 23.2 (13.2) | 29.6 (15.3) | 23.6 (14.8) | 28.3 (13.5) |
| ASES-8 | 6.0 (1.9) | 5.9 (1.7) | 5.5 (2.2) | 6.5 (2.4) | 6.3 (1.6) | 5.3 (2.5) |
| HADS total* | 9.4 (4.4) | 11.3 (7.2) | 10.5 (5.7) | 12.7 (8.3) | 10.7 (6.2) | 12.8 (8.4) |
| HADS anxiety* | 5.3 (3.1) | 6.7 (4.3) | 6.3 (3.4) | 7.3 (4.8) | 5.9 (3.9) | 7.5 (4.9) |
| HADS depression* | 4.1 (2.0) | 4.6 (3.6) | 4.3 (3.1) | 5.4 (4.0) | 4.8 (2.7) | 5.3 (4.0) |
| EQ-5D-5L index‡, † | 0.723 (0.139) | 0.645 (0.170) | 0.691 (0.099) | 0.647 (0.249) | 0.687 (0.088) | 0.647 (0.183) |
| EQ-5D-5L VAS† | 70 (15.0) | 75 (20.0) | 70 (25.0) | 70 (22.5) | 75 (20.0) | 70 (23.5) |
*Higher scores indicate more severe problems.
†Median (IQR).
‡EQ-5D-5L index value control group n=23 due to missing data.
ASES-8, 8-item Arthritis Self-Efficacy Scale English version; HADS, Hospital Anxiety and Depression Scale; MSPSS, Multidimensional Scale of Perceived Social Support; PIH scale, revised 12-item Partners in Health Scale; VAS, Visual Analogue Scale; WOMAC, Likert version of the Western Ontario and McMaster’s University Osteoarthritis Index.