MAPT and anemia (phenotype): However, no significant differences were found in CSF Aβ40,t-tau, p-tau, t-tau/Aβ42, CSF p-tau/Aβ42 and Aβ42/Aβ40 levels between anaemia group and non-anaemia group (p = 0.799 for CSF Aβ40, p = 0.838 for CSF t-tau, p = 0.197 for CSF p-tau, p = 0.117 for CSF t-tau/Aβ42, p = 0.397 for CSF p-tau/Aβ42, p = 0.097 for Aβ42/Aβ40).