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