APOE and frontotemporal dementia: The K‐ROAD cohort (n = 289, mean age 72.4 ± 9.7 years, 60.6% female, 42.9% APOE ε4 carriers) consisted of CU (12.8%), MCI (18.0%), AD‐D (29.4%), SVCI (27.7%), and FTD (12.1%) participants.