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Table 1 Demographic and cognitive characteristics of the whole sample, disaggregated for increased levels of alpha3/alpha2

From: Conversion of mild cognitive impairment patients in Alzheimer’s disease: prognostic value of Alpha3/Alpha2 electroencephalographic rhythms power ratio

Alpha3/Alpha 2 power ratio
Demographic and clinical future High Middle Low p F
Number of subjects 18 38 18 --- ---
Age years 70.4 ± 6.7 [60-85] 68.4 ± 8.2 [52-83] 70.4 ± 7.4 [57-80] .55 0,6
Sex, female 13 (%) 24 (%) 14 (%) .51 0,67
Education, years 6.6 ± 3.6 [4–18] 7.6 ± 3.7 [3–17] 8.3 ± 4.7 [3–18] .42 0,89
Mini Mental State Exam 27 ± 1.7 [23–29] 27.4 ± 1.3 [24–30] 26.9 ± 1.2 [23–30] .46 2,46
Alpha3/alpha2 1.29 ± 0.1 [1.17-1.52] 1.08 ± 0.0 [1-1.16] 0.9 ± 0.1 [0.77-0.98] .000 144,62
  1. Numbers denote mean ± standard deviation, number and [range]. p denotes significance on analysis of variance (ANOVA)