Table 4.
Outcome measures in patients with obstructive sleep apnea
| Outcome | CPAP users | Non-CPAP treatment (n = 40) |
|
|---|---|---|---|
| Compliant (n = 40) | Non-compliant (n = 48) | ||
| Improvement in snoring n (%) | 36 (90)* | 4 (8) | N/A |
| Improvement in sleep quality n (%) | 35 (87)* | 4 (8) | N/A |
| Improvement in tiredness n (%) | 33 (82)*† | 4 (8) | 1 (3) |
| Weight loss n (%) | 10 (25) | 8 (17) | 7 (18) |
| Physician visits | 4.0 (3.1) (3.0 to 5.0) | 4.0 (3.7) (3.0 to 5.1) | 3.5 (2.6) (2.7 to 4.4) |
| Epworth Sleepiness Scale | 5.3 (2.6) (4.4 to 6.1)*‡ | 8.6 (5.1) (7.1 to 10) | 7.4 (4.2) (6.1 to 8.7) |
| Fatigue Severity Scale | |||
| Pre-treatment | 4.2 (1.4) (3.7 to 4.6)§ | 3.3 (1.7) (2.8 to 3.8) | 3.2 (1.5) (2.7 to 3.7) |
| Post-treatment | 2.7 (1.5) (2.2 to 3.2) | 2.8 (1.6) (2.4 to 3.3) | 2.7 (1.8) (2.1 to 3.2) |
Data expressed as number (percent) or mean (standard deviation) (95% confidence interval for mean) *P < 0.001(CPAP compliant vs CPAP non-compliant groups). †‡ P < 0.001, P < 0.007 (CPAP compliant vs Non-CPAP treatment groups). § P < 0.001 (pre-treatment vs post-treatment in CPAP compliant group). CPAP = continuous positive airway pressure; N/A = not applicable