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Table 1 Patient baseline characteristics and CSF biomarkers in diagnostic groups

From: Cerebrospinal fluid VILIP-1 and YKL-40, candidate biomarkers to diagnose, predict and monitor Alzheimer’s disease in a memory clinic cohort

 

Cognitively normal

MCI

AD

(n = 37)

(n = 61)

(n = 65)

Age (years)

64 (2)

68 (1)*

65 (1)

Sex, female

14 (38 %)

23 (38 %)

29 (45 %)

MMSE at baseline (range 0–30)a

28 (0.3)

27 (0.3)*

22 (0.7)†,‡

APOE genotype, ε4 carrierb

15 (42 %)

33 (57 %)

45 (70 %)*

Follow-up time (years)

2.4 (0.2)

2.0 (0.1)

1.9 (0.1)

CSF biomarkers

   

 Aβ42 (pg/ml)

741 (44)

530 (32)

412 (18)†,‡

 tau (pg/ml)

349 (38)

606 (64)

688 (44)

 ptau-181 (pg/ml)

54 (4)

78 (6)

86 (4)

  1. Data presented as mean (standard error) or number (percentage). Fisher’s exact test or ANOVA with post-hoc Bonferroni corrections were used when applicable. CSF biomarkers were log-transformed for ANOVA analyses
  2. aBaseline MMSE (with 30 indicative of perfect performance) was available for 160 patients, and follow-up MMSE was available for 148 patients; the cognitive follow-up period was (mean (standard error) 3.8 (0.2) years)
  3. b APOE genotype data were available for 36 cognitively normal individuals, 58 MCI patients, and 64 AD patients (total 158)
  4. * p ≤ 0.05 vs. cognitively normal
  5. p ≤ 0.005 vs. cognitively normal
  6. p ≤ 0.005 vs. MCI
  7. Aβ42 amyloid beta 1–42, AD Alzheimer’s disease, ANOVA analysis of variance, CSF cerebrospinal fluid, MCI mild cognitive impairment, MMSE Mini-Mental State Examination, ptau-181 tau phosphorylated at threonine 181, tau total tau