Table 1.
Characteristics and baseline clinical data of subjects in the obstructive sleep apnea and control groups
| OSA group (n = 31) | Control group (n =65) | P value | |
| Patient characteristics | |||
| Age (yr) | 51.3 ± 9.6 | 47.1 ± 11.8 | 0.082 |
| Sex (male) | 23 (74.2) | 27 (41.5) | 0.003 |
| Height (meters) | 167.1 ± 6.8 | 164.4 ± 8.0 | 0.104 |
| Weight (kg) | 74.3 ± 11.2 | 62.6 ± 12.0 | 0.000 |
| BMI (kg/m2) | 26.5 ± 3.0 | 23.1 ± 3.3 | 0.000 |
| Smoking | 9 (29.0) | 9 (13.8) | 0.075 |
| Drinking | 11 (35.5) | 24 (36.9) | 0.891 |
| Charlson score (points) | 1.0 ± 0.2 | 1.0 ± 0.0 | 0.325 |
| Hypertension | 10 (32.3) | 9 (13.8) | 0.034 |
| Diabetes mellitus | 4 (12.9) | 7 (10.8) | 0.759 |
| Baseline clinical data | |||
| Systolic BP (mmHg) | 127.6 ± 16.9 | 114.3 ± 22.2 | 0.004 |
| Diastolic BP (mmHg) | 79.3 ± 10.6 | 66.1 ± 14.4 | 0.000 |
| SaO2 (%) | 97.6 ± 1.7 | 98.0 ± 2.2 | 0.418 |
Data are expressed as absolute n (%) or mean ± SD. OSA: Obstructive sleep apnea; BMI: Body mass index; BP: Blood pressure; SaO2: Arterial oxygen saturation.