| |
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%)
|
- Figures denote numbers and proportions.
- CS = Caesarean section; GA = gestational age at delivery; PPH = postpartum haemorrhage; VD = vaginal delivery.
- ¥ All CS independent of status of performance – acute or elective.
- *Epidural analgesia and perineal rupture in vaginal deliveries.
-
†Caesarean section was subdivided into elective and acute CS from 1999.
