Total

(n = 500)

Severity

t

p

Mild (n = 380)

Severe (n = 120)

Maternal age (years)

Min. - Max.

16.0 - 45.0

19.0 - 40.0

16.0 - 45.0

0.427

0.670

Mean ± SD.

28.74 ± 6.25

28.65 ± 4.46

29.05 ± 10.01

Median

28.0

28.0

32.0

Gestational age (weeks)

Min. - Max.

20.0 - 40.0

31.0 - 40.0

20.0 - 37.0

4.181*

<0.001*

Mean ± SD.

33.0 ± 2.56

33.37 ± 1.75

31.81 ± 3.98

Median

33.0

34.0

33.0