APOE and dementia: After controlling independent variables, including gender, disease duration, educational attainment, APOE genotypes, dementia family history, MMSE scores, mutation status, and clinical diagnosis, the model showed that MMSE scores (B = −0.135, p < 0.001), disease duration (B = −0.421, p = 0.001), and status of mutation carried (B = −13.44, p < 0.001).