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Table 5 Correlation between age at operation and EEG in right and left occipital regions

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

EEG waves

Age at operation

r

P value

O1 (Left occipital region)

 Alpha power (Uv2)

− 0.065

0.608

 Theta power (Uv2)

− 0.110

0.386

 Delta power (Uv2)

− 0.056

0.660

 Alpha%

0.045

0.722

 Theta%

− 0.057

0.657

 Delta%

0.046

0.718

O2 (Right occipital region)

 Alpha power (Uv2)

− 0.106

0.404

 Theta power (Uv2)

− 0.130

0.306

 Delta power (Uv2)

− 0.071

0.578

 Alpha%

− 0.026

0.839

 Theta%

− 0.028

0.827

 Delta%

0.071

0.577

  1. P value > 0.05 non-significant, P value < 0.05 significant, P value < 0.01 highly significant. r Spearman correlation coefficient