Table 5.
Type of birth and intervention rates by planned place of birth- all women*
| Intervention and planned place of birth | No. events/births | Incidence of events/100 births | Unadjusted | Adjusted |
|---|---|---|---|---|
| Spontaneous vertex birth |
192 432/257 888 |
74.6 |
|
|
| Hospital |
179 307/242 715 |
73.9 |
1.00 |
1.00 |
| Birth centre |
12 447/14 477 |
86.0 |
2.17 (2.07-2.28) |
2.73 (2.60-2.87) |
| Home birth |
678/696 |
97.4 |
3.76 (2.91-4.86) |
4.05 (3.09-5.32) |
| Ventouse delivery |
25 940/257 888 |
10.1 |
|
|
| Hospital |
25 060/242 715 |
10.3 |
1.00 |
1.00 |
| Birth centre |
867/14 477 |
6.0 |
0.55 (0.52-0.60) |
0.51 (0.47-0.54) |
| Home birth |
13/696 |
1.9 |
0.16 (0.09-0.27) |
0.18 (0.10-0.30) |
| Forceps delivery |
13 188/257 888 |
5.1 |
|
|
| Hospital |
12 705/242 715 |
5.2 |
1.00 |
1.00 |
| Birth centre |
468/14 477 |
3.2 |
0.61 (0.55-0.66) |
0.55 (0.50-0.60) |
| Home birth |
15/696 |
2.2 |
0.37 (0.22-0.62) |
0.44 (0.26-0.73) |
| Intrapartum caesarean section |
26 385/257 888 |
10.2 |
|
|
| Hospital |
25 669/242 715 |
10.6 |
1.00 |
1.00 |
| Birth centre |
693/14 477 |
4.8 |
0.43 (0.39-0.46) |
0.36 (0.34-0.39) |
| Home birth |
23/696 |
3.3 |
0.27 (0.18-0.41) |
0.27 (0.17-0.40) |
| 3rd or 4th degree perineal trauma** |
|
|
|
|
| with episiotomy extensions |
7 557/231 403 |
3.3 |
|
|
| Hospital |
7 083/216 955 |
3.3 |
1.00 |
1.00 |
| Birth centre |
461/13 782 |
3.3 |
1.03 (0.93-1.13) |
0.93 (0.84-1.02) |
| Home birth |
13/666 |
2.0 |
0.55 (0.32-0.96) |
0.66 (0.38-1.14) |
| Syntocinon augmentation |
51 719/257 888 |
20.1 |
|
|
| Hospital |
50 067/242 715 |
20.6 |
1.00 |
1.00 |
| Birth centre |
1 612/14 477 |
11.1 |
0.48 (0.46-0.51) |
0.43 (0.41-0.45) |
| Home birth |
40/696 |
5.7 |
0.22 (0.16-0.30) |
0.24 (0.17-0.33) |
| Epidural or spinal analgesia for labour |
73 012/257 888 |
28.3 |
|
|
| Hospital |
70 635/242 715 |
29.1 |
1.00 |
1.00 |
| Birth centre |
2 321/14 477 |
16.0 |
0.47 (0.44-0.49) |
0.40 (0.37-0.41) |
| Home birth |
56/696 |
8.1 |
0.20 (0.15-0.26) |
0.19 (0.15-0.26) |
| General anaesthesia *** |
4 429/26 365 |
16.8 |
|
|
| Hospital |
4 357/25 649 |
17.0 |
1.00 |
1.00 |
| Birth centre |
70/693 |
10.1 |
0.55 (0.43-0.71) |
0.61 (0.48-0.79) |
| Home birth |
2/23 |
8.7 |
0.47 (0.11-1.99) |
0.71 (0.16-3.06) |
| Episiotomy ** |
41 885/231 396 |
18.1 |
|
|
| Hospital |
40 506/216 948 |
18.7 |
1.00 |
1.00 |
| Birth centre |
1 353/13 782 |
9.8 |
0.47 (0.45-0.50) |
0.41 (0.39-0.44) |
| Home birth | 26/666 | 3.9 | 0.17 (0.11-0.25) | 0.18 (0.12-0.26) |
*Cases with missing data were not included in rates or regression calculations.
**Denominator = vaginal birth.
***Denominator = caesarean section.