No OSAHS | OSAHS | p-value | |
Sex ratio M:F | 23:22 | 40:5 | <0.0001 |
Age yrs | 51±10 | 51±9 | 0.6 |
BMI kg·m−2 | 27±5 | 30±6 | 0.08 |
Neck circumference cm | 37±4 | 42±3 | <0.0001 |
Sleep efficiency# | 77±10 | 72±15 | 0.05 |
REM time min | 73±21 | 65±32 | 0.26 |
Lowest Sp,O2 % | 91±4 | 82±10 | <0.0001 |
M: male; F: female; BMI: body mass index; REM: rapid eye movement sleep; Sp,O2: arterial oxygen saturation asleep. #: sleep efficiency as a percentage of the total time spent asleep divided by the time of the study.