Table 1. Baseline characteristics of the study sample.

Characteristics	AD patients, n = 41
Age, years, mean (SD)	69.9 (7.4)
Women, n (%)	25 (61)
MMSE, mean (SD)	20.5 (6.1)
CSF biomarkers, pg/mL, mean (SD)
Aβ 1-42	423.4 (152.2)
Tau	597.7 (340.2)
p-Tau 181	108.1 (54.3)
p-Tau 181/Tau ratio	0.20 (0.04)
CSF PKR, ODU, mean (SD)
T-PKR	62.8 (19.3)
pPKR	88.5 (36.0)
Follow-up, months, mean (SD)	25.7 (4.5)
Number of MMSE evaluations, mean (SD)	4.5 (2.9)