Ji K, et al. - Because patients with undiagnosed obstructive sleep apnea (OSA) often present with symptoms of chronic rhinosinusitis (CRS) to an otolaryngologist, researchers analyzed such patients' symptom profiles to help identify those who might benefit from polysomnography. Outcomes of the 22-Item Sinonasal Outcomes Test (SNOT-22) have been compared between patients with untreated OSA without CRS (OSA group) and a control group of CRS patients (CRS group). The OSA group included 41 patients and the CRS group included 124 patients. In the CRS group, nasal discharge and loss of smell/taste scores were higher, whereas facial pain and nasal obstruction did not differ significantly. In symptom profiles, OSA and CRS have a significant overlap. The SNOT-22 can assist people with undiagnosed OSA to be identified. In patients reporting a sleep-related item as a MIS, OSA should be suspected and show greater psychological and sleep domain scores.