Table 2.
Participant demographics (N=42).
| Characteristicsa | Room 1 (test set), mean (SD) | Room 2 (train set), mean (SD) |
| Male | 8 (13) | 7 (14) |
| Age (years) | 53 (15) | 55 (13) |
| BMIb (kg/m2) | 28 (6) | 32 (7) |
| Sleep efficiency (%) | 73 (18) | 75 (18) |
| REMc sleep percentage (%) | 16 (6) | 15 (8) |
| Mean wake heart rate (bpmd) | 66 (17) | 71 (15) |
| Mean REM heart rate (bpm) | 63 (18) | 72 (12) |
| Minimum SaO2e | 81 (9) | 81 (7) |
| Mean SaO2 | 94 (3) | 94 (3) |
| Number of OAsf (events) | 16 (35) | 16 (23) |
| Number of CAg (events) | 4 (10) | 2 (3) |
| AHIh (events/hour) | 24 (35) | 29 (26) |
| Sleep duration (hour) | 5 (1) | 5 (1) |
aParticipants’ information calculated from the sleep reports of the overnight sleep study of participants annotated by sleep technicians.
bBMI: body mass index. BMI is different between the two rooms with a P value of .04.
cREM: rapid eye movement.
dbpm: beats per minute.
eSaO2: arterial oxygen saturation.
fOA: obstructive apnea.
gCA: central apnea.
hAHI: apnea-hypopnea index.