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Table 3 Demographic and main clinical characteristics of “typical Alzheimer’s disease,” late converters, and “smoldering” and “aggressive” mild cognitive impairment

From: Metabolic correlates of reserve and resilience in MCI due to Alzheimer's Disease (AD)

Characteristics Typical AD (n = 76) Late converters (n = 18) Smoldering MCI (n = 13) Aggressive MCI (n = 13)
Age, years 75.2 ± 6.7 75.7 ± 6.3 74.8 ± 4.8 73.8 ± 8.0
Sex
 Male 12 2 8 7
 Female 36 16 5 6
Education, years 10.2 ± 4.5 9.9 ± 4.7 11.3 ± 5.3 10.7 ± 3.9
Baseline MMSE 27.5 ± 1.9 26.5 ± 1.1 27.2 ± 3.1 26.6 ± 3.0
ΔMMSE score/year − 1.6 ± 1.5 − 1.1 ± 0.9 + 0.7 ± 0.5 − 2.2 ± 1.8
  1. Abbreviations: AD Alzheimer’s disease, MCI Mild cognitive impairment, MMSE Mini Mental State Examination, ΔMMSE Mini Mental State Examination reduction