Table 4. Effects of walking exercise on the Hospital Anxiety and Depression Scale (HADS) outcome variables according to the clinical cutoff point at baseline and at third and sixth months (general linear model).
|
Pretest,a
case number (%) |
Third month, case number (%) |
Sixth month, case number (%) |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Outcome variables | ⩾8 | <8 | ⩾8 | <8 | Wald χ2 | P-value of group × time | ⩾8 | <8 | Wald χ2 | P-value of group × time | Overall of Wald χ2 | Overall P-value of group × time |
| Anxiety | 6.04 | 0.014* | 2.45 | 0.118 | 6.04 | 0.049* | ||||||
| Walking-exercise group | 13 (22.4) | 45 (77.6) | 9 (18.4) | 40 (81.6) | 5 (11.4) | 39 (88.6) | ||||||
| Usual-care groupa | 8 (13.8) | 50 (86.2) | 17 (34.7) | 32 (65.3) | 8 (17.0) | 39 (83.0) | ||||||
| Depression | 10.26 | 0.001* | 1.28 | 0.257 | 10.74 | 0.005* | ||||||
| Walking-exercise group | 18 (31.0) | 40 (69.0) | 10 (20.4) | 39 (79.6) | 13 (29.5) | 31 (70.5) | ||||||
| Usual-care groupa | 14 (24.1) | 44 (75.9) | 23(46.9) | 26(53.1) | 16 (34.0) | 31 (66.0) | ||||||
Using generalised estimation equations for repeated measurements and (AR1) correlation structure.
*P<0.05.
a
Reference group.