Case

Control

Total

OR (95% CI)

P-value

Variables

n = 174 (%)

n = 348 (%)

N = 522 (%)

Term at delivery

[28 - 32[

Yes

9 (5.2)

18 (5.2)

27 (5.2)

1 (0.42 - 2.26)

0.570

No

165 (94.8)

330 (94.8)

495 (94.8)

[32 - 37[

Yes

33 (19.0)

37 (10.6)

70 (13.4)

1.97 (1.17 - 3.28)

0.010

No

141 (81.0)

311 (89.4)

452 (86.6)

[37 - 41[

Yes

81 (46.6)

260 (74.7)

341 (65.3)

0.29 (0.20 - 0.43)

<0.001

No

93 (53.4)

88 (25.3)

181 (34.7)

>41

Yes

0 (0.0)

1 (0.3)

1 (0.2)

0 (0.00 - 38.00)

0.670

No

174 (100.0)

347 (99.7)

521 (99.8)

Mode of delivery

n = 121

n = 316

N = 437

Vaginal delivery

23 (19)

187 (59.2)

210 (48.1)

0.16 (0.1 - 0.27)

<0.001

Cesarean delivery

98 (81)

129 (40.8)

227 (51.9)

618 (3.74 - 10.38)

<0.001

Type of C/S*

n = 98

n = 129

N = 227

Elective

72 (73.5)

63 (48.8)

135 (59.5)

5.9 (3.73 - 9.32)

<0.001

Emergency C/S*

26 (26.5)

66 (51.2)

92 (40.5)

1.04 (0.61 - 1.72)

0.490