Table 2.
Mean scores (standard deviation) for PSQI (total and subscales score) in all the study groups.
| Measures | Group 1 | Group 2 | Control Group | Tests of Between-Subjects Effects (F and p-Values) |
|---|---|---|---|---|
| (CBI ≤ 36) | (CBI > 36) | |||
| PSQI total | 7.02 (3.43) | 10.43 (4.27) | 5.86 (3.57) | F2,290 = 40.39; p < 0.001 * |
| Subjective sleep quality | 1.14 (0.69) | 1.63 (0.80) | 0.90 (0.73) | F2,290 = 25.55; p < 0.001 * |
| Sleep latency | 1.30 (1.15) | 1.93 (1.07) | 1.14 (0.86) | F2,290 = 16.99; p < 0.001 * |
| Sleep duration | 1.13 (0.97) | 1.49 (0.83) | 0.79 (0.65) | F2,290 = 18.34; p < 0.001 ** |
| Habitual sleep efficiency | 0.97 (1.06) | 1.40 (1.19) | 0.39 (0.77) | F2,290 = 24.24; p < 0.001 ** |
| Sleep disturbances | 1.19 (0.49) | 1.61 (0.64) | 1.27 (0.61) | F2,290 = 14.90; p < 0.001 * |
| Use of sleep medications | 0.40 (0.97) | 0.83 (1.22) | 0.34 (0.90) | F2,290 = 6.94; p < 0.01 * |
| Daytime dysfunction | 0.92 (0.78) | 1.57 (0.81) | 1.02 (0.77) | F2,290 = 20.12; p < 0.001 * |
Note: all values are significant. * Scheffé’s post-hoc test: Group 1–Group 2; Group 2–Control Group; p < 0.05; ** Scheffé’s post-hoc test: Group 1–Group 2; Group 1–Control Group; Group 2–Control Group; p < 0.05. PSQI: Pittsburgh Sleep Quality Index.