Table 3.
Comparisons of differences in BI, IADLs, and rehabilitation motivation scores between the two groups at different times using the generalized estimating equation approach.
| Parameter | Estimate (B) | S.E. | Wald x2 | p-Value |
|---|---|---|---|---|
| BI | ||||
| Intercept | 32.66 | 2.90 | 126.99 | <0.001 *** |
| Group | −7.80 | 4.23 | 3.40 | 0.070 |
| Time 2 (T2) | 17.58 | 3.00 | 38.43 | <0.001 *** |
| Time 3 (T3) | 22.70 | 3.52 | 57.65 | <0.001 *** |
| Group*Time (T2) | 1.02 | 3.61 | 0.08 | 0.782 |
| Group*Time (T3) | 4.02 | 5.08 | 6.26 | 0.436 |
| IADLs c | ||||
| Intercept | 4.37 | 0.56 | 61.35 | <0.001 *** |
| Group | −0.87 | 0.72 | 1.43 | 0.231 |
| Time 2 (T2) | 3.24 | 0.54 | 20.81 | <0.001 *** |
| Time 3 (T3) | 4.15 | 0.57 | 31.01 | <0.001 *** |
| Group*Time (T2) | −0.77 | 0.78 | 0.97 | 0.324 |
| Group*Time (T3) | −0.96 | 0.98 | 0.97 | 0.325 |
| Motivation for rehabilitation | ||||
| Intercept | 21.75 | 0.52 | 1717.79 | <0.001 *** |
| Group | −0.75 | 0.83 | 0.82 | 0.372 |
| Time 2 (T2) | 3.45 | 0.60 | 33.43 | <0.001 *** |
| Time 3 (T3) | 3.25 | 0.71 | 20.72 | <0.001 *** |
| Group*Time (T2) | 3.10 | 0.83 | 14.03 | <0.001 *** |
| Group*Time (T3) | 2.54 | 1.09 | 5.38 | 0.026 * |
Reference group: control group, reference group: Time 1 (T1, before the intervention), reference group: control group* Time 1, Time 2 (T2): 6 weeks after the intervention, Time 3 (T3): 3 months after the intervention, BIc: Barthel index, IADLsc: instrumental activities of daily living, SE (standard error) is the standard deviation of its sampling distribution, The Wald x2 (also called the Wald Chi-Squared Test) is a way to find out if explanatory variables in a model are significant. * p < 0.05, *** p < 0.001.