The lower frequency of APOE ε4 in iNPH than in AD/Aβ42+ patients was not statistically significant when adjusted for multiple comparison (23.81 [95% C.I. = 5.59:42.03], χ2 = 4.52, p = 0.033, V = 0.22). The gene discussed is APOE; the disease is Alzheimer disease.