Table 3. Caesarean delivery rate and proportion of total cesarean in subgroups of women with births from 28+0 to 44+6 gestational weeks, 2000 to 2010.
| Modified Classification | 2000–01 | 2002–03 | 2004–05 | 2006–07 | 2008–09 | 2010 | |
|---|---|---|---|---|---|---|---|
| NS(1) | caesarean rate (%) | 8.1 | 8.6 | 8.6 | 9.3 | 9.7 | 9.9 |
| proportion of total cesarean | 18.7 | 18.9 | 18.8 | 20.2 | 19.7 | 18.4 | |
| NI(2a) | caesarean rate (%) | 21.4 | 22.2 | 23.6 | 24.2 | 24.3 | 22.4 |
| proportion of total cesarean | 10.2 | 9.6 | 9.3 | 9.7 | 11.3 | 12.9 | |
| NC(2b) | caesarean rate (%) | 100 | 100 | 100 | 100 | 100 | 100 |
| proportion of total cesarean | 3.5 | 3.6 | 3.6 | 3.3 | 3.4 | 3.9 | |
| MS(3) | caesarean rate (%) | 1.7 | 1.9 | 1.9 | 1.8 | 1.9 | 2.2 |
| proportion of total cesarean | 4.3 | 4.6 | 4.8 | 4.5 | 4.3 | 4.1 | |
| MI(4a) | caesarean rate (%) | 5.3 | 5.5 | 5.4 | 5.6 | 5.8 | 6.1 |
| proportion of total cesarean | 2.6 | 2.4 | 2.2 | 2.3 | 2.6 | 3.2 | |
| MC(4b) | caesarean rate (%) | 100 | 100 | 100 | 100 | 100 | 100 |
| proportion of total cesarean | 5.4 | 5.7 | 6.0 | 6.1 | 5.8 | 6.2 | |
| PC(5) | caesarean rate (%) | 43.5 | 42.4 | 42.5 | 43.7 | 46.7 | 51.5 |
| proportion of total cesarean | 15.0 | 15.0 | 16.4 | 17.7 | 18.4 | 18.1 | |
| BR(6, 7, 9) | caesarean rate (%) | 68.0 | 77.5 | 77.3 | 75.4 | 78.2 | 81.8 |
| proportion of total cesarean | 27.2 | 27.9 | 26.7 | 24.2 | 22.6 | 21.3 | |
| TW(8) | caesarean rate (%) | 37.6 | 40.7 | 40.1 | 39.0 | 42.5 | 47.9 |
| proportion of total cesarean | 5.3 | 5.4 | 5.2 | 4.7 | 4.8 | 4.7 | |
| PT(10) | caesarean rate (%) | 21.4 | 21.0 | 21.9 | 22.3 | 22.4 | 24.2 |
| proportion of total cesarean | 7.9 | 6.8 | 7.1 | 7.3 | 7.0 | 7.1 | |
NS: nulliparous spontaneous; NI: nulliparous induced; NC: nulliparous caesarean; MS: multiparous spontaneous; MI: multiparous induced; MC: multiparous caesarean; PC: previous caesarean; BR: breech; TW: twins; PT: preterm