National Women's Annual Clinical Report 2010

5.2 Outcomes following induction
Table 174: Mode of birth at term by onset of birth and parity (excluding women with prior
CS) among intended vaginal births (2010)
Nullipara Multipara (no previous CS)
Spontaneous
labour
n=1755
Induced
labour
n=1151
Spontaneous
labour
n=1709
Induced labour
n=782
n % n % n % n %
Mode of birth
SVB 1060 60.4 456 39.6 1582 92.6 664 84.9
Operative vaginal 428 24.4 287 24.9 66 3.9 47 6.0
CS emergency
labour
in
267 15.2 300 26.1 61 3.6 48 6.1
CS emergency not in
labour*
0 0.0 108 9.4 0 0.0 23 2.9
Epidural
*failed induction rate
1015 57.8 983 85.4 536 27.6 493 54.5
Table 175: Mode of birth at term among nullipara by indication for induction (2010)
Post dates
n=221
Term
PROM
n=252
Hypertensio
n
n=127
Prolonged
latent
phase
n=146
Diabetes
n=112
SGA
n=107
Other
n=35
n % n % n % n % n % n % n %
Mode of birth
SVB 59 26.7 117 46.4 40 31.5 56 38.4 65 58.0 51 47.7 16 45.7
Operative
vaginal
58 26.2 61 24.2 38 29.9 36 24.7 21 18.8 26 24.3 8 22.9
CS emergency
in labour
79 35.8 57 22.6 35 27.6 46 31.5 19 17.0 16 15.0 7 20.0
CS emergency
not in labour*
25 11.3 17 6.8 14 11.0 8 5.5 7 6.3 14 13.1 4 11.4
Epidural
*failed induction rate
192 86.9 214 84.9 112 88.2 134 91.8 91 81.3 80 74.8 29 82.9
Table 176: Mode of birth at term among multipara (excluding previous Caesarean) women
by indication for induction (2010)
Post dates
n=121
Diabetes
n=119
SGA
n=51
Prolonged
latent phase
n=86
Term PROM
n=105
Hypertens
ion
n=60
Other
n=240
n % n % n % n % n % n % n %
Mode of birth
SVB 107 88.4 107 89.9 45 88.2 76 88.9 89 84.8 48 80.0 192 80.0
Operative
vaginal
6 5.0 3 2.5 1 2.0 6 7.0 4 3.8 6 10.0 21 8.8
CS emergency
in labour
6 5.0 7 5.9 3 5.9 3 3.5 8 7.6 5 8.3 16 6.7
CS emergency
not in labour*
2 1.7 2 1.7 2 3.9 1 1.2 4 3.8 1 1.7 11 4.6
Epidural
*failed induction rate
57 47.1 34 28.6 27 52.9 47 54.6 57 54.3 31 51.7 147 61.3
227