Table 1 Comparisons between the etiology-specific group and non-etiology-specific group

Age (day)

255.93 ± 173.93

254.74 ± 119.03

-0.037

0.970

Gender (male/female)

22/24

35/7

12.131

≤ 0.001

Family history (yes/no)

13/33

29/13

14.639

≤ 0.001

Birth status (normal/abnormal)

30/16

9/33

17.059

≤ 0.001

Metabolic status (normal/abnormal)

36/10

11/31

23.922

≤ 0.001

brain magnetic resonance imaging (MRI) (normal/abnormal)

26/20

12/30

6.991

0.008

Age of onset (day)

178 ± 94

167 ± 98

-0.178

0.859

Duration of onset (day)

92.30 ± 149.13

110.86 ± 95.85

0.687

0.494