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. 2022 Feb 22;13(4):270–281. doi: 10.1159/000521330

Table 3.

Comparison of the examination findings in Dravet syndrome patients with and without SCN1A variations

Variable SCN1A-positive (n = 12) SCN1A-negative (n = 3) Test p value
Age of onset of febrile seizure, months (median, range) 4.75 (3–9) 5.0 (4–7) Z = 0.591 0.555
Age of onset of afebrile seizure, months (median, range) 6.0 (4–10) 6.0 (5–8) Z = 0.221 0.825
EEG initial abnormalities, % (n) 50 (6) 0 (0) χ2 = 2.500 0.229
Present focal seizures, % (n) 25 (3) 33.3 (1) χ2 = 0.085 1.000
Fever-sensitive seizures, % (n) 83.3 (10) 66.7 (2) χ2 = 0.417 0.516
Vaccination-related seizures, % (n) 33.3 (4) 0 (0) χ2 = 1.364 0.516
Status epilepticus, % (n) 25 (3) 33.3 (1) χ2 = 0.085 1.000

EEG, electroencephalogram; Z, Mann-Whitney U-test value. χ2, Fisher's exact test.