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Table 4 EEG and type of brain waves of hemodialysis patients before and after in treatments cycles

From: Effect of valerian on cognitive disorders and electroencephalography in hemodialysis patients: a randomized, cross over, double-blind clinical trial

time EEG First Period Second Period
Aa B Aa B
Number Percent Number Percent Number Percent Number Percent
Before intervention Normal (Alpha, Beta) 3 42.9 1 12.5 4 57.1 3 42.9
Mild (Theta) 4 57.1 7 87.5 3 42.9 4 57.1
After intervention Normal (Alpha, Beta) 4 57.1 3 42.9 4 66.7 3 100
Mild (Theta) 3 42.9 4 57.1 2 33.3
  1. aThe group A took valerian capsules in the first therapeutic period of one month and placebo in the second therapeutic period of one month, and vice versa in group B