Table 4.
Results of split-plot analysis of covariance for stress-related factors.
|
|
Intervention (n=63) | Control (n=63) | Test statisticsa | P valueb | ||||||||||||||
|
|
Baseline | Follow-up | Baseline | Follow-up | F testc | η2 |
|
|||||||||||
| PSSd | 21.6 (5.9) | 15.4 (4.7) | 20.1 (3.8) | 19.6 (4.4) | 24.33 | 0.17 | <.001 | |||||||||||
| UWESKe total | 2.6 (0.8) | 3.1 (0.9) | 2.8 (0.8) | 2.9 (0.7) | 8.32 | 0.06 | .0046 | |||||||||||
| WHOQOLf | ||||||||||||||||||
|
|
Overall QoLg | 3.0 (0.8) | 3.6 (0.7) | 3.1 (0.7) | 3.3 (0.8) | 8.19 | 0.06 | .0049 | ||||||||||
|
|
Overall health | 2.9 (0.9) | 3.3 (0.8) | 2.9 (0.8) | 3.0 (0.9) | 1.68 | —h | .20 | ||||||||||
|
|
Physical health | 56.1 (13.8) | 65.8 (14.1) | 58.4 (12.3) | 60.7 (11.8) | 8.87 | 0.07 | .003 | ||||||||||
|
|
Psychological | 52.5 (15.1) | 63.6 (16.7) | 57.3 (12.9) | 59.5 (12.3) | 13.32 | 0.10 | <.001 | ||||||||||
|
|
Social relationship | 55.1 (18.1) | 66.6 (14.6) | 61.0 (15.8) | 59.1 (16.3) | 19.43 | 0.14 | <.001 | ||||||||||
|
|
Environmental | 58.2 (14.6) | 68.6 (12.5) | 60.4 (12.6) | 61.9 (10.9) | 10.14 | 0.08 | .002 | ||||||||||
| BDIi | 17.7 (9.5) | 11.5 (9.2) | 15.3 (7.7) | 13.1 (7.6) | 7.17 | 0.06 | .008 | |||||||||||
| BAIj | 13.8 (9.3) | 8.0 (8.7) | 11.0 (7.3) | 9.0 (7.0) | 6.00 | 0.05 | .02 | |||||||||||
aStatistics reported are for the interaction between intervention and time of each variable.
bP<.005 is considered significant.
cdegree of freedom: 1123.
dPSS: Perceived Stress Scale.
eUWESK: Utrecht Work Engagement Scale.
fWHOQOL: World Health Organization Quality of Life Scale.
gQoL: quality of life.
hNot applicable.
iBDI: Beck Depression Inventory–II.
jBAI: Beck Anxiety Inventory.