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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