2000–2002 | 2003–2005 | 2006–2008 | 2009–2011 | 2000–2011 | ||
---|---|---|---|---|---|---|
Maternal age | Mean (SD a) | 25.2 (6.1) | 26.0 (5.9) | 27.0 (5.8) | 27.9 (5.7) | 26.3 (6.0) |
Range | 12–50 | 12–50 | 12–50 | 13–50 | 12–50 | |
Missing (%) | 811 (1.7%) | 679 (2.0%) | 287 (1.0%) | 183 (0.6%) | 1960 (1.4%) | |
Parity | Mean (SD) | 2.2 (1.6) | 2.2 (1.5) | 2.1 (1.3) | 2.3 (1.4) | 2.2 (1.5) |
Range | 1–14 | 1–15 | 1–13 | 1–13 | 1–15 | |
Previous CS b | Previous CS (%) | 3365 (7.2%) | 2964 (8.6%) | 2739 (9.9%) | 4859 (17%) | 13, 927 (10%) |
No previous CS (%) | 43,357 (93%) | 31, 416 (91%) | 24, 896 (90%) | 23, 498 (83%) | 123, 167 (90%) | |
Private insurance | Private (%) | 0 (0%) | 2268 (6.6%) | 5257 (19%) | 5702 (20%) | 13, 227 (9.6%) |
Public (%) | 46,722 (100%) | 32,112 (93%) | 22,378 (81%) | 22,655 (80%) | 123, 867 (90%) | |
Referral status | Referred from another hospital (%) | 3351 (7.2%) | 3946 (11%) | 4897 (18%) | 7979 (28%) | 20,173 (15%) |
Not referred from another hospital (%) | 43,371 (93%) | 30,434 (89%) | 22,738 (82%) | 20,378 (72%) | 116,921 (85%) | |
Instrumental deliveries (%) | 337 (0.7%) | 384 (1.1%) | 133 (0.5%) | 302 (1.1%) | 1156 (0.8%) |