The EOAD group was more severely impaired (lower scores on the MMSE [p < 0.001, d = 0.85], higher CDR global scores [p = 0.004, w = 0.12], and higher rates of participants classified as dementia [p < 0.001, w = 0.28]) than the LOAD group, and possessed lower rates of APOE ε4 carriers (p = 0.007, w = 0.11). The gene discussed is APOE; the disease is dementia.