Table 3.
Outcome measures over time by groupb
| Intervention (n = 71) | Control (n = 70) | P-value‡ | F | P-value† | Parameter estimate of GLM | 95% CI of parameter estimate of GLM | |||
|---|---|---|---|---|---|---|---|---|---|
| Baseline (mean ± SD) |
12 weeks (mean ± SD) |
Baseline (mean ± SD) |
12 weeks (mean ± SD) |
||||||
| Primary outcome | |||||||||
| WOMAC pain | 7.34 ± 3.36 | 4.28 ± 3.30 | 7.19 ± 4.48 | 5.73 ± 3.54 | 0.683 | 7.575 | 0.007* | −1.60 | −2.75,-0.58 |
| WOMAC stiffness a | 2 (0,3) | 1 (0,3) | 2 (1,4) | 2 (1,4) | 0.428 | 7.215 | 0.008* | −0.79 | −1.37, -0.21 |
| Secondary outcomes | |||||||||
| FTSST, s | 14.22 ± 3.10 | 12.13 ± 2.93 | 14.49 ± 4.10 | 14.13 ± 4.13 | 0.669 | 40.272 | <0.001* | −2.82 | −3.70, -1.94 |
| TUG, s | 13.30 ± 3.14 | 11.73 ± 1.97 | 13.02 ± 3.27 | 12.60 ± 2.81 | 0.611 | 21.178 | <0.001* | −1.37 | − 1.96, -0.78 |
| 6MWT, m | 408.45 ± 60.54 | 442.39 ± 49.70 | 422.86 ± 49.29 | 417.57 ± 53.04 | 0.124 | 12.457 | 0.001* | 29.81 | 13.11, 46.51 |
| AIMS2-SF total | 75.06 ± 10.00 | 82.00 ± 9.96 | 76.57 ± 10.62 | 77.90 ± 9.52 | 0.433 | 13.263 | <0.001* | 5.08 | 2.32, 7.84 |
| AIMS2-SF-body | 27.04 ± 4.50 | 29.54 ± 3.82 | 27.94 ± 4.77 | 28.43 ± 4.29 | 0.174 | 8.459 | 0.004* | 1.65 | 0.53, 2.77 |
| AIMS2-SF-symptoms | 10.75 ± 2.41 | 12.62 ± 1.85 | 10.89 ± 2.11 | 11.34 ± 1.78 | 0.998 | 11.548 | 0.001* | 1.30 | 0.54, 2.05 |
| AIMS2-SF- emotionala | 21 (20, 24) | 25 (20, 25) | 22 (20, 24) | 22 (19.75, 24) | 0.486 | 5.640 | 0.019* | 1.11 | 0.19, 2.03 |
| AIMS2-SF- societya | 16 (15, 18) | 18 (15. 20) | 17 (14, 20) | 17 (14.75, 20) | 0.316 | 5.403 | 0.022* | 1.11 | 0.17, 2.05 |
‡ Independent t-test or Mann-Whitney U Test was used (week 0 intergroup comparison)
† The general linear model was used to analyze differences between the intervention and control groups; community was a random factor; baseline scores were covariates; and the control group was the reference
aMedian (Interquartile Range)
bFTSST Five-times-sit-to-stand test, the unit of this outcome measure is seconds, TUG Timed up and go test, the unit of this outcome measure is seconds, 6MWT The six-minute walk test, the unit of this outcome measure is meters, WOMAC Western Ontario and McMaster Universities osteoarthritis index, pain (0–20), stiffness (0–8), AIMS2-SF Arthritis impact measurement scales 2 - short form, body (7–35), symptom (3–15), emotional (5–25), society (4–20), total (19–95), CI Confidence interval, SD Standard deviation, GLM General linear model. p < 0.05 was considered statistically significant