Abstract:Objective To explore the clinical value of STOP-BANG questionnaire (SBQ), mandibular width and CT measurements at different levels of upper airway for obstructive sleep apnea hypopnea syndrome (OSAHS) screening. Methods 60 patients with suspected OSAHS were selected from the Department of Otorhinolaryngology, head and neck surgery, Liuzhou people's Hospital from September 2020 to May 2021; And SBQ, mandibular width, upper airway CT and PSG were performed. Results The subjects were divided into three groups according to sleep apnea hypopnea index (AHI): Non-OSAHS group , mild to moderate group, severe group. There was no significant difference in gender and age among the three groups; There were significant differences in SBQ, mandibular width, coronal and sagittal diameter of soft palate, coronal diameter of uvula and posterior among the three groups (P < 0.05); The SBQ score of the severe OSAHS group was significantly higher than that of the mild-moderate and non-OSAHS groups (P<0.05). Logistic regression analysis found that SBQ and mandible width were independent risk factors for OSAHS. Compared with a single SBQ as a diagnostic index, mandibular width combined with SBQ diagnosis can improve the sensitivity of OSAHS preliminary screening. Conclusion SBQ, mandibular width, sagittal diameter of the soft palate, uvula, and posterior coronal diameter are all closely related to the severity of OSAHS patients. SBQ combined with mandibular width measurement is helpful for initial OSAHS screening and is suitable for OSAHS risk screening for outpatients and surgical patients.