Table 5.
Prediction of Functional Outcomes of Sleep Questionnaire subscales in participants with OSA treated with CPAP using stepwise regression.
| Predictors | Activity level | Vigilance | Intimate relationships | General productivity | Social outcomes |
|---|---|---|---|---|---|
| Age | |||||
| β | 0.33 | ||||
| ΔR 2 | .12 | ||||
| t (df) | 2.31 (25) | ||||
| P | .030 | ||||
| ESS (post) | |||||
| β | −0.032 | −0.66 | |||
| ΔR 2 | .09 | .43 | |||
| t (df) | −2.12 (25) | −4.52 (25) | −2.30 (23) | ||
| P | .044 | .000 | .031 | ||
| PSQI (post) | |||||
| β | −0.43 | −0.40 | −0.16 | ||
| ΔR 2 | .28 | .16 | 0.37 | ||
| t (df) | −2.86 (25) | −2.28 (27) | −3.95 (27) | ||
| P | .009 | .031 | .001 | ||
| Model R 2 | .49 | .43 | .19 | .43 | .37 |
| Adjusted R 2 | .43 | .41 | .15 | .41 | .34 |
| F (df) | 8.13 (3, 25) | 20.41 (1, 27) | 5.29 (1, 23) | 20.41 (1, 27) | 15.61 (1, 27) |
| P | .001 | .000 | .031 | .000 | .001 |
Non-significant predictor variables including education, diagnostic respiratory disturbance index (RDI), diagnostic peripheral oxygen saturation (SpO2), and post-treatment sleep-efficiency are not shown in the table.
ESS: Epworth sleepiness scale; PSQI: Pittsburg sleep quality index.