Table 2.
Comparison between the OSA group treated with CPAP and the control group in sleep and mood questionnaires.
| OSA (n = 37) |
Controls (n = 27) |
t (df = 62) | P | d | |
|---|---|---|---|---|---|
| Epworth sleepiness scale (ESS) | 8.3 (4.5)a | 6.6 (4.7) | 1.48 | .144 | 0.38 |
| Pittsburg sleep quality index (PSQI) | |||||
| Global score | 4.4 (2.4) | 4.6 (2.8) | 0.29 | .776 | 0.08 |
| Subjective sleep quality | 0.7 (0.6) | 0.8 (0.7) | 0.64 | .526 | 0.17 |
| Sleep latency | 0.4 (0.6) | 0.7 (0.6) | 1.87 | .066 | 0.50 |
| Sleep duration | 0.6 (0.8) | 0.6 (0.7) | 0.15 | .880 | 0 |
| Habitual sleep efficiency | 0.3 (0.7) | 0.6 (0.9) | 1.38 | .173 | 0.43 |
| Sleep disturbances | 1.2 (0.5) | 1.2 (0.5) | 0.47 | .641 | 0 |
| Use of sleep medication | 0.2 (0.6) | 0.1 (0.5) | 0.29 | .771 | 0.17 |
| Daytime dysfunction | 0.9 (0.7) | 0.6 (0.6) | 2.14 | .036* | 0.43 |
| Beck Depression Inventory (BDI) | 2.8 (4.7)a | 2.9 (2.4) | 0.01 | .989 | 0.02 |
| Profile of Mood States (POMS) | |||||
| Global score | 67.4 (24.0) | 60.3 (18.2) | 1.29 | .204 | 0.30 |
| Tension anxiety | 6.1 (5.0) | 5.0 (4.7) | 0.89 | .375 | 0.22 |
| Depression dejection | 5.0 (7.1) | 5.2 (6.1) | 0.11 | .913 | 0.03 |
| Anger hostility | 4.7 (6.2) | 3.7 (4.0) | 0.74 | .465 | 0.16 |
| Vigor activity | 17.5 (6.7) | 19.0 (5.2) | 0.96 | .342 | 0.22 |
| Fatigue inertia | 7.4 (6.2) | 4.7 (4.9) | 1.89 | .064 | 0.44 |
| Confusion bewilderment | 6.2 (4.6) | 5.3 (4.5) | 0.78 | .436 | 0.20 |
| Functional Outcomes of Sleep Questionnaire (FOSQ) | |||||
| Total score | 17.6 (2.2) | 18.4 (1.5) | 1.61 | .113 | 0.36 |
| Activity level | 3.3 (0.6) | 3.7 (0.3) | 2.99 | .004** | 0.67 |
| Vigilance | 3.4 (0.5) | 3.5 (0.5) | 0.96 | .341 | 0.20 |
| Intimacy | 3.6 (0.6) | 3.8 (0.5) | 1.04 | .304 | 0.33 |
| General productivity | 3.6 (0.5) | 3.8 (0.3) | 1.48 | .143 | 0.40 |
| Social outcome | 3.7 (0.5) | 3.7 (0.5) | 0.06 | .953 | 0 |
Higher scores indicate more difficulties in all questionnaires, except for FOSQ.
aMean (SD); *P < .05; **P < .01.