NCAPG2 and Alzheimer disease: The results indicated that N stage (HR = 1.591, 95% CI = 1.205–2.829, P = 0.036), p‐TNM Stage (HR = 1.573, 95% CI = 1.261–2.671, P = 0.034) and high expression of NCAPG2 protein (HR = 2.107, 95% CI = 1.361–3.37, P = 0.028) were observed to an independent prognostic factor for AD patients.