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Table 2 Comparison between TOF patients and control group as regards EEG changes (left occipital region)

From: Electroencephalographic changes in neurologically free patients with tetralogy of Fallot after surgical repair: a cross section study in Egyptian children

O1 (left occipital region)

Group

P value

MW test

Patients (n = 68)

Controls (n = 32)

Median (range)

Median (range)

Alpha power (Uv2)

86.35 (5.36–1012.87)

46.795 (10.26–290.98)

0.023

− 2.3

Theta power (Uv2)

65.67 (9.26–450.57)

66.23 (12.69–762.22)

0.773

− 0.3

Delta power (Uv2)

288.3 (15.37–12727.38)

224.38 (43.37–5001.95)

0.935

− 0.1

Alpha%

12.35% (0.50–55.10%)

10.30% (1.50–43.10%)

0.387

− 0.9

Theta%

11.55% (2.20–87.30%)

11.00% (4.30–27.80%)

0.674

− 0.4

Delta%

54.55% (6.40–95.40%)

69.30% (22.40–92.10%)

0.035

− 2.1

  1. p value is considered significant if < 0.05, MW Mann-Whitney test