INS and otitis media with effusion: Other comorbidities mainly included Obstructive Sleep Apnea (n = 2), Chronic Obstructive Pulmonary Disease (n = 2), ischemic heart disease (n = 2), hypercholesterolemia (n = 1), serous otitis media (n = 1), insulin resistance (n = 1), and glaucoma (n = 1).