Table 3.
Comparison of mean score of quality of sleep in intervention and control groups.
| Group | ||||||||
|---|---|---|---|---|---|---|---|---|
| Quality of sleep | Intervention | Control | Statistical test ∗ | P value | Mean difference | P value ∗∗ | ||
| Mean | SD | Mean | SD | |||||
| The first day of surgery | 33.38 | 11.22 | 39.59 | 12.8 | 10.84 | <0.001 | −6.21 | 0.07 |
| Before intervention (the second day after surgery) | 41.98 | 13.92 | 42.15 | 11.78 | −0.17 | 0.96 | ||
| Immediately after intervention (the fourth day after surgery) | 60.60 | 10.75 | 52.23 | 11.76 | 8.38 | 0.01 | ||
| One week after intervention (the eleventh day after surgery) | 69.43 | 8.74 | 56.27 | 8.03 | 13.17 | <0.001 | ||
| Greenhouse–Geisser test | 76.12 | 19.22 | — | |||||
| P value | <0.001 | <0.001 | — | |||||
∗Repeated measures analysis of variance. ∗∗Adjusted for multiple comparisons.