Table 1.
Demographic and baseline measures for the auto bilevel group (N = 26) and the CPAP group (N = 22)*
| Variable | Auto-Bilevel Group (N = 26) | CPAP Group (N = 22) | t-test | p-value |
|---|---|---|---|---|
| % Male | 81% | 73% | −0.65 | NS |
| Age, yr | 54.1 (12.5) | 56.6 (9.8) | −0.764 | NS |
| Education, % College | 62% | 54% | 0.907 | NS |
| BMI | 34.9 (6.5) | 31 (4.4) | 2.345 | 0.023 |
| %Neck Circum (cm) | 43.3 (4.6) | 40.2 (10.0) | 1.414 | NS |
| Nicotine, #/day | 1 (4.0) | 1.9 (4.7) | −0.688 | NS |
| Alcohol, drinks/wk | 2 (3.2) | 3.8 (6.6) | −1.219 | NS |
| % Split Night PSG | 65% | 86% | −1.687 | NS |
| Diagnostic AHI/h | 41.1 (22.5) | 39.4 (24.5) | 0.242 | NS |
| ESS | 9.8 (3.9) | 8.2 (4.5) | 1.302 | NS |
| FSS | 4.6 (1.4) | 4 (1.2) | 1.593 | NS |
| Global FOSQ | 84.3 (20.5) | 88.5 (21.6) | −0.688 | NS |
| ATU-A, Self-Efficacy | 20.4 (3.2) | 19 (4.7) | 1.278 | NS |
| TAT Titration | 27.9 (Range 6-97 d) | 26.7 (Range 6-54 d) | 0.232 | NS |
a
Values given as means (SD), unless otherwise indicated.
NS, not significant; ESS, Epworth Sleepiness Scale; FSS, Fatigue Severity Scale; FOSQ, Functional Outcomes Sleep Questionnaire; TAT Titration = time, in days, between in-lab titration failure and baseline study visit titration.