Total (n = 383)

Mild

(n = 260)

Severe (n = 123)

χ2

p

No.

%

No.

%

No.

%

NICU admission

No

258

67.4

233

89.6

25

20.3

216.286*

<0.001*

Yes

125

32.6

27

10.4

98

79.7