Table 1.
Participants’ demographic features for apnea-hypopnea index (AHI) estimation (N=41).a
| Characteristics | Value, mean (SD) |
| Age (years) | 53 (13) |
| BMI (kg/m2) | 30 (7) |
| Sleep duration (hours) | 5 (1) |
| Number of changes in body position | 9 (6) |
| Sleep efficiency (%) | 75 (18) |
| REMb sleep percentage (%) | 15 (7) |
| Mean wake heart rate (bpmc) | 68 (16) |
| Mean REM heart rate (bpm) | 67 (16) |
| Minimum SaO2d | 82 (9) |
| Mean SaO2 | 94 (3) |
| AHI (events/hour) | 27 (31) |
| Supine AHI (events/hour) | 41 (39) |
| Lateral AHI (events/hour) | 21 (34) |
aParticipants’ information was obtained from the sleep reports of the overnight sleep study annotated by sleep technicians.
bREM: rapid eye movement.
cbpm: beats per minute.
dSaO2: arterial oxygen saturation.