Table 1.
Baseline Characteristics for Patients Who Underwent Randomization and Completed the Trial
| All Patients (n = 25) | Treatment Order Oxygen–Air (n = 16) | Treatment Order Air–Oxygen (n = 9) | |
|---|---|---|---|
| Age, yr | 62.7 ± 6.9 | 61.0 ± 7.4 | 65.8 ± 4.8 |
| Male sex | 21 (84%) | 14 (88%) | 7 (78%) |
| BMI, kg/m2 | 35.3 ± 6.7 | 36.1 ± 7.1 | 34.0 ± 6.3 |
| Neck circumference, cm | 44.2 ± 4.1 | 45.3 ± 3.7 | 42.4 ± 4.2 |
| ODI≥4% at diagnosis, per hour | 48.0 (25.3–68.2) | 50.0 (26.1–70.1) | 45.7 (24.1–65.7) |
| ODI≥4% off CPAP in screening, per hour | 34.5 (26.3–46.5) | 42.7 (30.5–54.3) | 26.7 (25.2–34.3) |
| CPAP usage, h/night | 6.5 ± 0.2 | 6.6 ± 0.3 | 6.3 ± 0.2 |
| Receiving regular antihypertensives | 16 (64%) | 11 (69%) | 5 (56%) |
Definition of abbreviations: BMI = body mass index; CPAP = continuous positive airway pressure; ODI≥4% = oxygen desaturation index of at least 4%.
Data are shown as mean ± SD, median (interquartile range), or n (%). Characteristics are shown for all patients and divided into groups by treatment order.