Table 2. Comparison of the PSG findings and carotid IMT measurements and FRS.
| Parameters | Control | Mild-moderate OSAS | Severe OSAS | P |
|---|---|---|---|---|
| Sleep efficiency (%) | 88.90±8.30 | 87.50±9.40 | 88.10±13.90 | 0.908 |
| TST (minutes) | 365.70±47.40 | 371.70±54.60 | 366.30±82.40 | 0.924 |
| AHI | 2.09±1.39 | 14.05±7.65 | 65.00±24.14 | <0.001 |
| ODI | 2.19±2.34 | 12.68±7.81 | 58.81±24.72 | <0.001 |
| T90 | 0.29±0.52 | 1.78±3.42 | 31.13±24.93 | <0.001 |
| Mean SpO2 | 94.44±1.35 | 93.03±1.24 | 89.28±3.80 | <0.001 |
| Min. SpO2 | 88.60±3.79 | 83.83±4.9 | 72.77±10.53 | <0.001 |
| ESS | 9.70±5.06 | 9.97±4.59 | 15.29±4.11 | <0.001 |
| IMT (mm) | 0.77±0.13 | 0.83±0.15 | 0.95±0.14 | <0.001 |
| FRS | 5.95±3.38 | 9.97±4.59 | 11.26±5.13 | <0.001 |
OSAS, obstructive sleep apnea syndrome; TST, total sleep time; AHİ, apnea-hypopne index; ODI, oxygen desaturation index; T90, which is the percentage of the total sleep time with oxygen saturation below; Mean SpO2, mean oxygen saturation at sleep; Min. SpO2, minimum oxygen saturation at sleep; ESS, epworth sleepiness scale; IMT, carotid arter intima-media thickness (mm); FRS, Framingham risk score.