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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: 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