Table 2.
Primary outcome measures: improvements and differences between groupsa.
| Outcome measures | n | Intervention, mean (95% CI) | n | Control, mean (95% CI) | Difference, I-Cb(95% CI) | ES | P value | |
| Total PA, PASE (0-400) | ||||||||
|
|
Baseline | 100 | 163 (130-196) | 97 | 160 (123-197) | — | — | — |
|
|
3 months | 85 | 162 (136-187) | 79 | 163 (137-190) | −1.6 (−16.6 to 13.5) | −0.01 | .84 |
|
|
12 months | 74 | 174 (150-198) | 71 | 153 (125-181) | 21.2 (3.6-38.9) | 0.18 | .02 |
| Total PA (accelerometer min/day) | ||||||||
|
|
Baseline | 39 | 369 (299-439) | 40 | 395 (322-468) | — | — | — |
|
|
3 months | 27 | 361 (312-411) | 30 | 358 (310-407) | 3 (−26 to 32) | 0.02 | .83 |
|
|
12 months | 24 | 361 (317-406) | 28 | 338 (291-384) | 24 (0.5-46.8) | 0.19 | .045 |
| Physical functioning (0-100) | ||||||||
|
|
Baseline | 99 | 58.8 (51.5-66.0) | 98 | 55.2 (47.9-62.5) | — | — | — |
|
|
3 months | 84 | 67.8 (59.2-76.4) | 80 | 61.3 (52.7-69.9) | 6.5 (1.8-11.2) | 0.20 | .006 |
|
|
12 months | 75 | 67.9 (59.1-76.7) | 72 | 62.9 (54.1-71.7) | 5.0 (−1.0 to 11.0) | 0.17 | .1 |
| Self-perceived effect (improved-not improved) | ||||||||
|
|
3 months, n (%) improved | 85 | 44 (44) | 83 | 7 (7.1) | 10.7c (4.3-26.4) | — | <.001 |
|
|
12 months, n (%) improved | 76 | 34 (34) | 74 | 27 (27.3) | 1.2c (0.6-2.4) | — | .5 |
aFor PA, physical functioning, and self-perceived effect, a higher score indicates an improvement. Results are based on GEE analyses and adjusted for corresponding baseline variables, age, OA location, and gender.
bI-C: difference between intervention and control group.
codds ratio