APOE and diabetes mellitus: However, APOE ε4 carriers and non-ε4 carriers had similar vascular risk factors (hypertension 66.67% vs. 70.83%, p = 0.13; diabetes 27.49% vs. 30.31%, p = 0.30) as well as stroke severity (NIHSS, p = 0.23) (Table 1, Supplementary Table 1).