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Table 2 CS delivery by year*, NSW, 1998- 2008

From: Epidemiology and trends for Caesarean section births in New South Wales, Australia: A population-based study

 

No caesarean

(row %)

(n = 720,880)

Caesarean

(row %)

(n = 244,822)

Crude OR

Adjusted OR*

(95% CI)

Year of delivery

    

1998

68,856 (80.9)

16,216 (19.1)

Referent

Referent

1999

69,055 (80.3)

16,912 (19.7)

1.04 (1.02-1.07)

1.04 (1.01-1.07)

2000

68,004 (78.7)

18,456 (21.3)

1.15 (1.13-1.18)

1.18 (1.14-1.22)

2001

64,499 (76.4)

19,880 (23.6)

1.31 (1.29-1.34)

1.36 (1.32-1.40)

2002

63,532 (75.1)

21,055 (24.9)

1.40 (1.37-1.44)

1.46 (1.41-1.50)

2003

62,468 (73.5)

22,564 (26.5)

1.53 (1.50-1.57)

1.58 (1.53-1.62)

2004

61,384 (72.8)

22,904 (27.2

1.58 (1.55-1.62)

1.62 (1.58-1.67)

2005

64,063 (71.9)

25,077 (28.1)

1.66 (1.62-1.70)

1.69 (1.64-1.74)

2006

64,981 (71.2)

26,334 (28.8)

1.72 (1.68-1.76)

1.79 (1.74-1.84)

2007

67,152 (71.0)

27,450 (29.0)

1.74 (1.70-1.78)

1.74 (1.69-1.79)

2008

66,886 (70.5)

27,974 (29.5)

1.78 (1.74-1.82)

1.76 (1.71-1.81)

  1. *adjusted for year of delivery, hospital group, maternal age, parity, maternal hypertension, maternal diabetes, maternal smoking during pregnancy, previous CS, plurality, onset of labour, birth presentation, pre-term birth, size at birth(< 10th and > 90th percentile)