Total (n = 500)

Mild (n = 380)

Severe (n = 120)

χ2

P

No.

%

No.

%

No.

%

3) Viability

Dead

67

13.4

0

0.0

67

55.8

244.996*

<0.001*

Viable

433

86.6

380

100.0

53

44.2

4) Placenta

Normal

420

84.0

380

100.0

40

33.3

301.587*

<0.001*

Abruptio placenta

80

16.0

0

0.0

80

66.7