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Table 2 Characteristics of participants included in the study. The sample was composed of 384 cognitively unimpaired individuals, and 738 cognitively impaired, among which 539 were diagnosed with mild cognitive impairment and 199 with probable Alzheimer’s disease

From: Plasma pTau181 predicts cortical brain atrophy in aging and Alzheimer’s disease

Characteristics CU CI
Number of subjects 384 738
Age (mean, SD) in years 74.40 (6.50) 73.61 (7.94)
Females (n, %) 205 (53%) 311 (42%)
MMSE score (mean, SD) 29.06 (1.23) 26.36 (3.68)
Plasma pTau181 (mean, SD) 15.48 (10.02) 19.80 (10.75)
  1. Statistical difference between groups (P < 0.05)
  2. Statistical difference between groups (P < 0.001)