There were significant difference in apnea hyponea index (AHI) and percent of time in saturation lower 90%(STL90%) in the cases of OSAS with hypertension, compared to the simple OSAS;

Methods The measured body parameters and polysomnography(PSG)parameters of 155 patients with OSAHS entered into multiple linear regression analysis to correlate with apnea hyponea index (AHI).