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Table 1 Subject characteristics

From: Declining functional connectivity and changing hub locations in Alzheimer’s disease: an EEG study

  Controls AD patients   
   Severe Moderate Mild
N 133 117 96 105
Age, Yearsa 67.8(6.3) 68.1(8.5) 70.7(8.8) 69.9(9.6)
Sex, Female 59(63 %)b 62(53 %) 52(54 %) 40(38 %)
MMSE-scorea 28.5(1.3)c 15.4(3.5) 21.5(1.1) 25.8(1.6)
Disease duration, yearsa n.a. 4.1(2.5) 3.5(2.1) 3.2(1.9)
Using AChEIa 1(0.8 %) 8(6.8 %) 5(5.2 %) 5(4.8 %)
Educationa d 5.4 (1.2) 4.2 (1.5) 4.8 (1.3) 5.3 (1.2)
  1. The data is represented as mean (SD) or number (percentage)
  2. AChEI Acetyl-cholinesterase inhibitor, MMSE mini mental-state examination
  3. aThese variables where tested using ANOVA. We corrected the results for multiple comparison using a post-hoc Bonferroni test
  4. bgender differences of p < 0.01 were found between mild AD and severe/moderate AD
  5. cMMSE differences of p < 0.01 were found between all group combinations
  6. dLevel of education was rated according to Verhage [51]