Table 1.
Age, race, respiratory disturbance index (RDI), OAHI, body mass index (BMI), ventilatory drive in hypoxia (Slope, P0.1/PETO2) and the resting PETCO2 (mmHg) in subjects divided into low and high OAHI groups. Values are means ± SD.
| Group | N | Age (Y) | RDI | OAHI | BMI (kg/m2) | Slope, P0.1/PETO2 (cmH2O/mmHg) | Resting PETCO2 (mmHg) |
| Low OAHI | 27 | 8.6 ± 1 (6–11) | 4.4 ± 5 (1–13) | 3.1 ± 0.8 (1.2–4.5) | 18.4 ± 5 (13.4–35) | 155 ± 27 (0–555) | 42.5 ± 0.6 (39.1–48.1) |
| High OAHI | 23 | 9.3 ± 5 (8–12) | 14.6 ± 14 (6.5–72.4) | 12 ± 10 (5.9–52) | 19 ± 4 (12.6–26) | 83 ± 20 (0–330) | 44 ± 0.7 (39.4–54.9) |
| P value, low vs. high | 0.67 | <0.001 | <0.001 | 0.74 | 0.037 | 0.066 |