APOE and Alzheimer disease: Amongst participants who converted to AD dementia, there were no significant differences in MMSE scores at baseline between hearing unimpaired and hearing impaired participants for those who converted at 12 months (F (1, 108) = 0.05, p = 0.821, np2 < 0.001), 24 months (F (1, 187) = 0.41, p = 0.52, np2 = 0.002), 36 months (F (1, 177) = 0.42, p = 0.52, np2 = 0.002), 48 months (F (1, 127) = 0.56, p = 0.46, np2 = 0.004) and 60 months (F (1, 70) = 0.07, p = 0.80, np2 < 0.001), after controlling for age, gender, APOE4 status and years of education.