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. 2008 Jan-Mar;2(1):9–12. doi: 10.1590/S1980-57642009DN20100003

Table 3.

Mann-Whitney test for cognitive performance and EEG spectral peak before and while undergoing AChEI treatment.

  Before treatment Undergoing treatment Mann-Whitney U p-value
MMSE
Mean (SD) 
23.14 (3.34) 22.73 (4.01) 262.0 0.956
EEG spectral peak
Mean (SD)
8.64 Hz (1.37) 8.66 Hz (1.23) 241.5 0.991