Moreover, multiple regression models indicated that REM-NREM AHI (b = -2.38, p < 0.001), RDI (b = -1.77, p = 0.02), and ODI (b = -2.02, p = 0.03) ratios were negatively associated with short-delay recall, both in models featuring APOE4 status (See Table S16) and parental history of AD as covariates (all p < 0.03; See Table S17). The gene discussed is APOE; the disease is Alzheimer disease.