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Table 2 Comparison of demographic information according to level of education

From: The items in the Chinese version of the Montreal cognitive assessment basic discriminate among different severities of Alzheimer’s disease

  Low-level education  
Group NC (N = 11) MCI (N = 26) Mild AD (N = 82) Moderate-severe AD (N = 12) P-Value
Factor
Education years (X̄±s) 2.4 ± 2.8 3.7 ± 2.4 3.2 ± 2.6 1.5 ± 2.3 0.08
Age (X̄±s) 69.2 ± 10.9 66.3 ± 8.6 70.1 ± 8.3 69.9 ± 8.6 0.288
Sex      0.382
 Male 6 11 27 3  
 Female 5 15 55 9  
  Middle-level education  
Group NC (N = 39) MCI (N = 131) Mild AD (N = 186) Moderate-severe AD (N = 25) P-value
Factor
Education years (X̄±s) 9.5 ± 3.1 9.3 ± 2.9 9.6 ± 2.4 8.9 ± 3.1 0.53
Age (X̄±s) 65.6 ± 9.0 65.5 ± 7.8 68.3 ± 9.0 67.4 ± 10.6 0.03
Sex      0.389
 Male 17 54 85 7  
 Female 22 77 101 18  
  High-level education  
Group NC (N = 279) MCI (N = 299) Mild AD (N = 234) Moderate-severe AD(N = 65) P-value
Factor
Education years (X̄±s) 11.8 ± 3.0 12.3 ± 3.4 12.0 ± 6.2 11.6 ± 3.2 0.56
Age (X̄±s) 65.9 ± 8.2 69.6 ± 8.1 70.8 ± 9.1 69.4 ± 9.7 0
Sex      0
 Male 92 152 121 28  
 Female 187 147 113 37  
  1. NC, cognitively normal controls; MCI, mild cognitive impairment; AD, Alzheimer’s disease