Table 3 Effects of pre-pregnancy body mass index on pregnancy outcomes.

Cesarean section^a

41 (42.7)

0.72 (0.45–1.15)

0.165

282 (50.5)

86 (64.2)

1.95 (1.29–2.96)

0.002

32 (72.7)

3.26 (1.57–6.76)

0.002

PPH^a

12 (12.5)

0.79 (0.40–1.56)

0.501

88 (15.8)

31 (23.1)

1.60 (0.99–2.59)

0.057

6 (13.6)

0.81 (0.31–2.12)

0.671

Preterm delivery^b

3 (3.1)

0.95 (0.27–3.30)

0.937

19 (3.4)

2 (1.5)

0.39 (0.09–1.70)

0.208

2 (4.5)

1.06 (0.22–5.08)

0.940

PPROM^b

21 (21.9)

1.48 (0.86–2.54)

0.153

89 (15.9)

23 (17.2)

1.05 (0.63–1.75)

0.855

12 (27.3)

1.89 (0.90–3.95)

0.092

GHT^c

1 (1.0)

0.48 (0.06–4.02)

0.499

10 (1.8)

8 (6.0)

4.10 (1.56–10.81)

0.004

5 (11.4)

9.78 (2.91–32.85)

0.000

Macrosomia^c

2 (2.1)

0.20 (0.05–0.87)

0.031

41 (7.3)

15 (11.2)

2.02 (1.05–3.88)

0.034

12 (27.3)

8.04 (3.46–18.66)

0.000

SGA^b

3 (3.1)

1.03 (0.29–3.62)

0.967

17 (3.0)

3 (2.2)

0.59 (0.17–2.13)

0.423

1 (2.3)

0.51 (0.06–4.22)

0.531

LGA^b

10 (10.4)

0.31 (0.15–0.63)

0.001

132 (23.7)

47 (35.1)

2.14 (1.40–3.26)

0.000

17 (38.6)

3.34 (1.69–6.60)

0.001