Table 2 Median hours of use for subjects using CPAP in different sub groups defined by study characteristics
First follow-up (6–10 weeks) | 6 month follow-up | |||
|---|---|---|---|---|
Median hours of use (IQR) per night | P value | Median hours of use (IQR) per night | P value | |
Long term unemployed vs. people in work (or retired) | 4.2 (3.8–5.3) vs. 6.3 (4.3– 7.5) | 0.028 | 2.61 (1.0 – 5.7) vs. 5.96 (4.0– 7.2) | 0.016 |
Education : Bachelor degree vs. less, formal education | 6.04 (4.14–7.49) vs. 5.90 (4.53–7.42) | 0.61 | 5.75 (3.4–7.13) vs. 6.02 (5.01–7.1) | 0.35 |
Type D personality; vs. Non-Type D | 6.00 (4.2–7.22) vs. 6.07 (4.22–7.49) | 0.8 | 5.5 (2.9–7.1) vs. 6.06 (4.14–7.1) | 0.48 |
Previous diagnosis of depression vs. None | 6.87 (2.92–7.85) vs. 6.00 (4.22– 7.17) | 0.19 | 5.61(3.00–6.90) vs. 5.74 (3.99–7.10) | 0.7 |
BDI > 13 vs. ≤ 13 | 6.00 (4.14–7.65) vs. 6.15 (4.36–7.26) | 0.62 | 5.01(2.62–7.37) vs. 5.99 (4.68–7.00) | 0.57 |
BDI ≥ 29 vs. BDI <29 | 4.72 (4.30–7.49) vs. 6.20 (3.98–7.19) | 0.31 | 4.27 (2.52–6.5) vs. 5.98 (4.01–7.13) | 0.08 |
Anxiety vs. No anxiety (self report) | 6.46(3.77–7.87) vs. 6.00 (4.22 –7.22) | 0.25 | 5.01 (2.56–6.66) vs. 5.84(4.0–7.20) | 0.09 |
Sex (male vs. female) | 6.00 (4.2–7.2) vs. 6.36 (4.18–7.19) | 0.43 | 5.59 (3.4–7.03) vs. 5.97 (4.75–7.6) | 0.26 |
Age (greater than 70 vs. ≤70 years) | 7.02 (6.6– 7.23) vs. 6.00 (4.1–7.46) | 0.21 | 6.99 (5.94–7.00) vs. 5.61 (3.4–7.1) | 0.23 |
ESS ≥ 10 vs. <10 | 6.02 (4.14–7.45) vs. 6.0 (4.63–7.73) | 0.24 | 5.6 (3.4–7.1) vs. 6.1 (4.17–7.2) | 0.20 |
4% desaturation index >20 vs. ≤20 per hour | 6.0 (4.1–7.5) vs. 6.04 (4.16–7.38) | 0.8 | 6.14 (3.62–7.27) vs. 5.39 (3.2–6.99) | 0.38 |