Table 3.
Adverse perinatal, maternal and caesarean section outcomes stratified by parity.
| Preference for induction of labour ≤ 411/7 * (n = 371) |
Preference for expectant management† (n = 2173) |
Unadjusted RR (95 % CI) |
Adjusted RR (95 % CI)‡ |
|||||
|---|---|---|---|---|---|---|---|---|
| Nulliparous (n = 170) |
Multiparous (n = 201) |
Nulliparous (n = 1134) |
Multiparous (n = 1039) |
Nulliparous | Multiparous | Nulliparous | Multiparous | |
| Composite adverse perinatal outcome | 3 (1.8 %) |
1 (0.5 %) |
30 (2.6 %) |
11 (1.1 %) |
0.67 (0.21–2.16) |
0.47 (0.06–3.62) |
0.58 (0.14–2.41) |
0.54 (0.07–4.19) |
| Severe adverse perinatal outcome (with 5 min. Apgar score < 4)§ |
0 | 1 (0.5 %) |
13 (1.0 %) |
8 (0.8 %) |
N/A | 0.65 (0.08–5.14) |
N/A | 0.77 (0.10–6.15) |
| Composite adverse maternal outcome | 23 (13.5 %) |
20 (10.0 %) |
163 (14.4 %) |
85 (8.2 %) |
0.94 (0.63–1.41) |
1.22 (0.77–1.93) |
0.85 (0.54–1.34) |
1.23 (0.75–2.03) |
| (Secondary) caesarean section | 36 (21.1 %) |
2 (1.0 %) |
171 (15.1 %) |
22 (2.1 %) |
1.18 (0.85–1.64) |
0.47 (0.11–1.98) |
1.41 (1.01–1.97) |
0.57 (0.14–2.44) |
*One woman in the IOL group had an unknown parity; † One women in the EM group had an unknown parity; ‡ Adjusted for ethnicity, SES and BMI. BMI dichotomised by BMI < 25 and ≥ 25.
§Defined as Composite adverse perinatal outcome, tough where 5 min. Apgar score < 4 instead of < 7.