Table 1.
Basic characteristics of patients with obstructive sleep apnea (OSA) syndrome.
| Patients with OSA | AHI 5–14/h | AHI 15–29/h | AHI ≥30/h | P |
|---|---|---|---|---|
|
| ||||
| No. of subjects | 7 | 13 | 20 | |
| Mean age (years) | 38.3 (6.1) | 42.7 (9.1) | 48.9 (7.4) | .01 |
| Male, n (%) | 4 (57.1) | 10 (76.9) | 17 (85.0) | NS |
| Female, n (%) | 3 (42.9) | 3 (23.1) | 3 (15.0) | NS |
| Body mass index (kg/m2) | 27.5 (5.1) | 31.4 (4.6) | 31.5 (4.9) | .275 |
| Systolic blood pressure (mm Hg) | 122.1 (12.7) | 127.6 (17.6) | 136.5 (18.2) | .005 |
| Diastolic blood pressure (mm Hg) | 75.3 (10.0) | 78.5 (9.9) | 81.4 (8.7) | .016 |
| Heart rate (pulse/min) | 92.9 (12.9) | 86.4 (9.9) | 87.7 (12.0) | .579 |
| Hypertension, n (%) | 1 (14.3) | 4 (30.8) | 10 (50.0) | .005 |
| Apnea-hypopnea index (AHI) (per hour) | 8.5 (2.2) | 21.5 (3.8) | 50.5 (15.3) | .001 |
| Desaturation index (per hour) | 9.8 (8.4) | 22.0 (6.0) | 39.7 (18.4) | .001 |
| Minimum saturation of nocturnal arterial oxygen (SaO2) (%) | 87.3 (8.9) | 85.3 (4.2) | 75.7 (8.3) | .001 |
| Average SaO2 (%) | 96.1 (1.8) | 94.2 (1.9) | 91.6 (4.2) | .001 |
| Sleep duration (%)a | 8.6 (11.9) | 2.5 (5.0) | 18.5 (22.7) | .002 |
Data are presented as n, n (%), or mean SD.
a
At SaO2 <90%