Abstract:Abstract:ObjectiveTo explore the correlations between obstruction degree and subjective sleep quality or drowsiness in patients with obstructive sleep apnea hypopnea syndrome (OSAHS).Methods257 patients with OSAHS confirmed by polysomnogram (PSG) were divided into mild, moderate or severe group according to their PSG results. Before PSG, the patients were evaluated by Pittsburgh Sleep Quality Index (PSQI) and Epworth Sleeping Scale (ESS). 253 patients finished the two evaluations. The correlations among ESS,PSQI and apnea hyponea index (AHI) were analyzed.ResultsThere were positive correlations between AHI and ESS(r=0.249, P<0.001), AHI and subjective sleep quality of PSQI(r=0.261, P=0.004), AHI and day function of PSQI (r=0.127, P=0.025).Sleep quality of PSQI was positively correlated with ESS(r=0.214, P=0.001).ConclusionAHI,drowsiness and sleep quality can partly reflect the severity of OSAHS from each own angle. Their relationships are not alternative, but rather complementary with one another in the evaluation of OSAHS.