Early Prediction of Epilepsy after Encephalitis in Childhood Based on EEG and Clinical Features

Table 2

Baseline characteristics of encephalitis patients with or without postencephalitic epilepsy.

Variables	PE (n = 46)	No-PE (n = 209)	t/χ2	P
Age (years)	8.15 ± 1.62	7.80 ± 1.40	1.503	0.134
Male (n (%))	30 (65.22)	154 (73.68)	1.345	0.246
WBC (x 10^9/L)	8.45 ± 3.02	9.05 ± 3.14	0.621	0.535
NLR	6.13 ± 2.09	5.95 ± 2.23	0.195	0.845
Hemoglobin (g/L)	88.28 ± 25.62	106.65 ± 23.45	4.728	<0.001
Platelet count (x 10^9/L)	80.85 ± 56.11	7.74 ± 58.08	0.330	0.741
Albumin (g/L)	29.14 ± 4.31	29.06 ± 6.62	0.076	0.940
Globulin (g/L)	29.94 ± 6.57	31.80 ± 6.62	1.727	0.085
Epilepsy = first symptom (n (%))	15 (32.61)	58 (27.75)	0.435	0.509
Fever (n (%))	34 (73.91)	103 (49.28)	9.200	0.002
Consciousness disorder (n (%))	11 (23.91)	54 (25.84)	0.074	0.786
Partial seizure (n (%))	31 (67.39)	168 (80.38)	3.713	0.054
Epilepsy frequency ≥10/day (n (%))	17 (36.96)	20 (9.57)	22.797	<0.001
MRI : Intracranial inflammation (n (%))	22 (47.83)	122 (58.37)	1.706	0.191
Electroencephalogram slow wave/fast wave frequency (S/F)
Forehead region	0.54 ± 0.15	0.48 ± 0.21	2.211	0.028
Central region	0.45 ± 0.17	0.37 ± 0.20	2.566	0.011
Top region	0.48 ± 0.13	0.43 ± 0.15	2.182	0.030
Temporal region	0.39 ± 0.13	0.34 ± 0.11	2.897	0.004
Occipital region	0.38 ± 0.12	0.32 ± 0.08	3.798	<0.001

Note. WBC, white blood cell count; NLR, neutrophil to lymphocyte ratio; PE, postencephalitic epilepsy.