Table 2 Descriptive obstetric characteristics of women with singleton births in the period 1992-2010
Age groups | ||||||||
|---|---|---|---|---|---|---|---|---|
Characteristics | < 16 years | 16-17 years | 18-19 years | 20-30 years | ||||
Spontaneous onset delivery | 398 | (84.3%) | 4692 | (87.3%) | 20454 | (86.8%) | 753637 | (84.3%) |
Induced delivery | 41 | (8.7%) | 434 | (8.1%) | 1985 | (8.4%) | 82566 | (9.2%) |
Normal vaginal delivery | 396 | (83.9%) | 4599 | (85.5%) | 20006 | (84.9%) | 728163 | (81.5%) |
Forceps | 2 | (0.4%) | 13 | (0.2%) | 96 | (0.4%) | 3812 | (0.4%) |
Vacuum extraction | 29 | (6.1%) | 336 | (6.3%) | 1540 | (6.5%) | 63134 | (7.1%) |
CS¥ | 45 | (9.5%) | 429 | (8.0%) | 1916 | (8.1%) | 98390 | (11.0%) |
Elective CS† | 20 | (4.2%) | 70 | (1.3%) | 316 | (1.3%) | 22105 | (2.5%) |
Acute CS† | 13 | (2.8%) | 168 | (3.1%) | 686 | (2.9%) | 33265 | (3.7%) |
GA < 28 weeks | 4 | (0.9%) | 25 | (0.5%) | 71 | (0.3%) | 1576 | (0.2%) |
GA < 32 weeks | 7 | (1.5%) | 73 | (1.4%) | 207 | (0.9%) | 5447 | (0.6%) |
GA < 37 weeks | 54 | (11.5%) | 384 | (7.2%) | 1411 | (6.0%) | 42891 | (4.8%) |
GA 37 – 41 weeks | 387 | (82.3%) | 4620 | (86.1%) | 20622 | (87.6%) | 787840 | (88.2%) |
GA ≥ 42 weeks | 29 | (6.2%) | 363 | (6.8%) | 1514 | (6.4%) | 62595 | (7.0%) |
Epidural analgesia* | 175 | (41.0%) | 2099 | (42.4%) | 8658 | (40.0%) | 221265 | (27.8%) |
Perineal rupture grade 1-2* | 68 | (15.9%) | 689 | (13.9%) | 3204 | (14.8%) | 177205 | (22.3%) |
Perineal rupture grade 3-4* | 4 | (0.9%) | 55 | (1.1%) | 218 | (1.0%) | 14190 | (1.8%) |
Preeclampsia | 12 | (2.5%) | 89 | (1.7%) | 415 | (1.8%) | 13980 | (1.6%) |
Abruptio placentae | 1 | (0.2%) | 29 | (0.5%) | 113 | (0.5%) | 3317 | (0.4%) |
Placenta previa | 2 | (0.4%) | 1 | (0.0%) | 14 | (0.1%) | 1501 | (0.2%) |
PPH > 1000 ml (VD) | 10 | (2.3%) | 125 | (2.5%) | 523 | (2.4%) | 26305 | (3.3%) |
PPH > 1000 ml (CS) | 0 | (0%) | 9 | (2.1%) | 18 | (0.9%) | 1200 | (1.2%) |