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Table 1 Group characteristics (mean ± SD)

From: FDG-PET hypermetabolism is associated with higher tau-PET in mild cognitive impairment at low amyloid-PET levels

 

CN (n = 70)

MCI (n = 72)

AD dementia (n = 95)

Age (years)

72.00 ± 5.48c

76.74 ± 7.33

74.11 ± 8.60a

Gender (M/F)

33/37

42/30

52/44

Education (years)

16.53 ± 2.65

16.33 ± 2.88

15.48 ± 2.68

MMSE

28.99 ± 1.22b

28.22 ± 1.88

22.98 ± 2.04c

Aβ−/Aβ+d

70/0

42/30

0/95

  1. Abbreviations: Aβ amyloid-beta, AD Alzheimer’s disease, CN cognitively normal, F female, M male, MCI mild cognitive impairment, MMSE Mini-Mental State Exam
  2. Significantly different from MCI—ap < 0.05, bp < 0.01, and cp < 0.001
  3. dAβ status was determined via PET in MCI and via CSF in CN and AD dementia groups