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Table 1: 
Demographic details and neuropsychological test scores of the participants
ControlsMC1MC2
No. of individuals1166
Age (y)70.7 (6.9)69.2 (6.8)75.5 (8.8)
Gender % (no.) of men27 (3)33 (2)17 (1)
Education (y)11.6 (2.5)10.3 (3.7)11.2 (2.6)
MMSE28.0 (1.7)25.5 (1.8)*18.5 (4.3)*
NART110.7 (6.5)104.9 (4.2)113.5 (6.0)
CVLT-IFR52.46 (9.1)43.17 (8.4)18.67 (8.6)*
CVLT-SDFR10.00 (2.76)8.67 (1.97)0.50 (0.84)*
CVLT-LDFR10.64 (2.98)9.00 (2.97)0.17 (0.41)*
  • Note.— Data are expressed as means (±SD), except for gender. All neuropsychological data are presented here as raw scores. CVLT indicates California Verbal Learning Test; IFR, immediate free recall; LDFR, long delay free recall; MMSE, Mini Mental State Examination; NART, National Adult Reading Test; SDFR, short delay free recall.
  • * Significant difference between controls and MC1 or MC2 subgroups (P < .05, two-tailed t-test).