Table 6 Outcomes by parity (multiparous)
From: Double- versus single-balloon catheters for labour induction and cervical ripening: a meta-analysis
| Outcomes* | Number of studies analysed | Interventions | Effect measure | Pooled effect (95% CI) | Q p-value | I2- statistic | p-value | Sensitivity analysis | |
|---|---|---|---|---|---|---|---|---|---|
| Double | Single | ||||||||
| caesarean delivery | 2 [17,20] | 95 | 91 | RR | 1.35 [0.54, 3.36] | 0.43 | 0 | 0.52 | – |
| insertion to delivery intervalA | 2 [17,20] | 95 | 91 | MD | −0.48 [−2.24, 1.28] | 0.62 | 0 | 0.60 | – |
| −1.05 [− 2.68, 0.58] | 0.70 | 0 | 0.21 | – | |||||
| insertion to expulsion/removal interval | 1 [17] | 25 | 23 | MD | 2.30 [−0.97, 5.57] | – | – | 0.17 | – |
| Bishop score incrementC | 1 [17] | 25 | 23 | MD | 0.20 [−0.88, 1.28] | – | – | 0.72 | – |
| vaginal delivery within 24 h | 2 [17,20] | 95 | 91 | RR | 1.05 [0.93, 1.18] | 0.21 | 36% | 0.46 | – |
| normal vaginal deliveryD | 2 [17,20] | 95 | 91 | RR | 0.92 [0.83, 1.02] | 0.36 | 0 | 0.13 | – |
| assisted vaginal deliveryD | 1 [20] | 70 | 68 | RR | 8.75 [0.48, 159.42] | – | – | 0.14 | – |
| analgesia usage | 1 [20] | 70 | 68 | RR | 1.20 [0.70, 2.07] | – | – | 0.51 | – |
| maternal adverse events (infection) | 1 [20] | 70 | 68 | RR | 2.92 [0.12, 70.35] | – | – | 0.51 | – |
| neonatal adverse events (low Apgar score)E | 1 [20] | 70 | 68 | RR | Not estimable§ | – | – | – | – |