Skip to main content

Table 2 Patient, pregnancy and delivery characteristics

From: Limiting the caesarean section rate in low risk pregnancies is key to lowering the trend of increased abdominal deliveries: an observational study

 

2000

2004

2008

OR (95% CI)

2000 - 2008

Patient and pregnancy characteristics

60993

women

61647

women

68199

women

 

Primiparae aged 35 or older

5.2%

6.6%

7.6%

1.50 (1.43 - 1.57)***

Multiparae aged 35 or older

15.9%

18.4%

20%

1.32 (1.28 - 1.36)***

Parity

    

First child

46.7%

47.8%

46.9%

1.01 (0.99 - 1.03)

Second child

34.2%

33.5%

34.9%

1.03 (1.01 - 1.06)**

Third child

12.7%

12.5%

12.2%

0.96 (0.92 - 0.99)**

Assisted Reproduction

    

Assisted induction of ovulation

1.7%

2.1%

2.1%

1.24 (1.14 - 1.35)***

Assisted Reproductive Technology (In vitro fertilisation and Intra Cytoplasmic Sperm Injection)

1.7%

2.3%

3.3%

1.97 (1.83 - 2.13)***

Twin pregnancies

1.80%

1.61%

1.83%

1.02 (0.94 - 1.10)

Hypertension during pregnancy

4.9% (2002)

4.8%

4.8%

0.98 (0.93 - 1.03)

Diabetes during pregnancy

1.2% (2002)

1.4%

1.8%

1.51 (1.38 - 1.66)***

Induction of labor

30.3%

27.6%

25.3%

0.78 (0.76 - 0.80)***

Preterm birth (GA < 37 weeks)

7.1%

7.5%

7.4%

1.05 (1.00 - 1.09)*

Delivery characteristics

62 128

births

62657

births

69470 births

 

Presentation

    

   Vertex

95.0%

94.3%

94.1%

0.84 (0.80 - 0.88)***

   Breech

4.6%

5.2%

5.4%

1.18 (1.13 - 1.25)***

   Other

0.3%

0.5%

0.5%

1.67 (1.39 - 2.01)***

Low birth weight (< 2500 gr)

6.8%

6.9%

6.9%

1.02 (0.97 - 1.06)

Vaginal cephalic delivery

71.2%

69.8%

69.3%

0.91 (0.89 - 0.94)***

Vaginal breech delivery

0.5%

0.5%

0.3%

0.60 (0.50 - 0.72)***

Vacuum extraction

11.2%

9.7%

9.5%

0.83 (0.80 - 0.86)***

Forceps

1.3%

0.9%

0.8%

0.61 (0.55 - 0.68)***

Caesarean sections

16.4%

18.3%

19.5%

1.23 (1.20 - 1.27)***

   Elective C - section

9.2%

10.8%

11.2%

1.24 (1.20 - 1.29)***

   Unplanned C - section

6.6%

7.4%

8.2%

1.26 (1.21 - 1.32)***

Perinatal mortality

6.7‰

6.4%

6.2‰

0.92 (0.80 - 1.06)

   Foetal death

4.4 ‰

4.3‰

4.3 ‰

0.98 (0.83 - 1.16)

   Neonatal death

2.3 ‰

1.8‰

1.9 ‰

0.83 (0.65 - 1.06)

  1. *P < 0.05, **P < 0.01, ***P < 0