Classification

Experimental group

Control group

Group difference

n

(%)

n

(%)

(exact test)

(Parity)

Primipara

37

(48.7)

47

(35.9)

Multipara

37

(48.7)

79

(60.3)

p = 0.102

Unknown

2

(2.6)

5

( 3.8)

(Outcome of pregnancy)

Normal delivery

60

(78.9)

99

(75.6)

Abortion/Premature delivery

3

(3.9)

9

( 6.9)

p = 0.538

Unknown (hospital transfer)

13

(17.1)

23

(17.6)

Total

76

(100.0)

131

(100.0)