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Table 3 Distribution of subjects using CPAP for equal to/more than, or less than 4 h per night by study characteristics

From: A prospective observational study to evaluate the effect of social and personality factors on continuous positive airway pressure (CPAP) compliance in obstructive sleep apnoea syndrome

  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)
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