Table 3 Distribution of subjects using CPAP for equal to/more than, or less than 4 h per night by study characteristics
First follow-up (6–10 weeks) | 6 month follow-up | OR for suboptimal compliance at six months (95% confidence interval) | |||
|---|---|---|---|---|---|
Percentage with characteristic and compliance ≤ 4 h/night | P value | Percentage with characteristic and compliance ≤ 4 h/night | P value | ||
Long term unemployed vs. people in work (or retired) | 45% vs. 19% | 0.046 | 64% vs. 26% | 0.011 | 4.59 (1.4-15.0) |
Education: Bachelor degree vs. less, formal education | 22.2% vs. 12.9% | 0.18 | 29.3% vs. 16.3% | 0.09 | 1.12 (0.99-1.28) |
Type D personality vs. non-Type D | 21% vs. 19% | 0.40 | 33% vs. 22% | 0.056 | 1.30 (0.93-1.72) |
Previous diagnosis of depression vs. None | 27% vs. 18% | 0.088 | 34% vs. 25% | 0.10 | 1.34 (0.91-1.99) |
BDI > 13 vs. ≤ 13 | 24% vs. 18% | 0.28 | 34% vs. 21% | 0.03 | 1.40 (1.03-1.9) |
BDI ≥ 29 vs. BDI <29 | 29% vs. 19% | 0.24 | 50% vs. 25% | 0.028 | 2.65 (1.12-6.3) |
Anxiety vs. No anxiety (self report) | 30% vs. 19% | 0.052 | 40% vs. 25% | 0.048 | 1.67 (0.99-2.84) |
Sex (male vs. female) | 20.5% vs. 23.8% | 0.39 | 30.2% vs. 20.5% | 0.14 | 1.68 (0.75-3.77) |
Age (greater than 70 vs. ≤70 years) | 22.2% vs. 0% | 0.32 | 29.9% vs. 0% | 0.19 | 1.04 (1.0-1.07) |
ESS ≥ 10 VS < 10 | 29% vs. 16% | 0.24 | 29.3% vs. 19.2% | 0.20 | 1.07 (0.96-1.18) |
4% desaturation index >20 vs. ≤20 per hour | 20% vs. 23% | 0 .34 | 28% vs. 30% | 0.47 | 1.04 (0.76-1.4) |