Demographic characteristics and polysomnographic evaluation of OSA and control groups
| OSA | Control | p Value | |
|---|---|---|---|
| Patients (n) | 61 | 24 | |
| F/M | 23/38 | 9/15 | NS |
| Age (years) | 51.2±9.9 | 49.1±10.1 | NS |
| BMI (kg/m²) | 32. 3±3.5 | 30.3±5.3 | NS |
| SBP, mm Hg | 118±13.0 | 116±12.1 | NS |
| LDL (mg/dL) | 113±25.4 | 93±31.1 | NS |
| Triglycerides (mg/dL) | 134±60.4 | 114±48.2 | NS |
| AHI (events/h of sleep) | 35.9±26.7 | 3.0±1.8 | <0.05 |
| ODI (events/h) | 42.7±34.8 | 4.2±3.4 | <0.05 |
| TST90 | 107.9±1402 | 20.4±49.9 | <0.05 |
| Mean SaO2 (%) | 90.2±6.0 | 93.7±2.6 | <0.05 |
Data are numbers or means±SD.
TST90, total sleep time with oxyhemoglobin saturation below 90%, significantly different from healthy controls (p<0.05, non-paired t test).
AHI, apnea-hypopnea index; BMI, body mass index; F, female; LDL, Low-density lipoprotein; M, male; mean SaO2, mean of arterial oxygen saturation; NS, not significant; ODI, oxygen desaturation index; OSA, obstructive sleep apnea; SBP, systolic blood pressure.