As expected, no significant associations were found of the severity of anaemia with CSF Aβ40, t-tau, p-tau, t-tau/Aβ42, p-tau/Aβ42 and Aβ42/Aβ40 levels (p = 0.505 for CSF Aβ40, p = 0.781 for CSF t-tau, p = 0.256 for CSF p-tau, p = 0.101 for CSF t-tau/Aβ42, p = 0.299for CSF p-tau/Aβ42, p = 0.166 for CSF Aβ42/Aβ40). This evidence concerns the gene MAPT and anemia.