Serum neuronal pentraxin 2 is related to cognitive dysfunction and electroencephalogram slow wave/fast wave frequency ratio in epilepsy

Table 2 Comparison of electroencephalogram slow wave/fast wave frequency ratio for different brain regions of epilepsy patients with different cognitive function (mean ± SD)

Area of ECG	Epilepsy		t	P
	Normal (n = 74)	ECD (n = 37)
Frontal region	0.54 ± 0.20	0.65 ± 0.20	2.781	0.006
Central region	0.45 ± 0.18	0.53 ± 0.16	2.441	0.016
Top region	0.39 ± 0.21	0.45 ± 0.16	1.461	0.147
Temporal region	0.39 ± 0.17	0.62 ± 0.13	7.127	< 0.001
Occipital region	0.28 ± 0.13	0.34 ± 0.19	1.827	0.070

ECD: Epilepsy patients with cognitive dysfunction; ECG: Electrocardiogram.