Comparison 2.
Continuous support versus usual care - policy regarding presence of companion
| Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
|---|---|---|---|---|
| 1 Any analgesia/anaesthesia | 14 | Risk Ratio (IV, Fixed, 95% CI) | Subtotals only | |
| 1.1 Other support permitted | 7 | 9752 | Risk Ratio (IV, Fixed, 95% CI) | 0.97 [0.96, 0.99] |
| 1.2 Other support not permitted | 7 | 2598 | Risk Ratio (IV, Fixed, 95% CI) | 0.91 [0.85, 0.96] |
| 2 Synthetic oxytocin during labour | 15 | Risk Ratio (IV, Fixed, 95% CI) | Subtotals only | |
| 2.1 Other support permitted | 5 | 9495 | Risk Ratio (IV, Fixed, 95% CI) | 1.04 [0.99, 1.10] |
| 2.2 Other support not permitted | 10 | 3125 | Risk Ratio (IV, Fixed, 95% CI) | 0.99 [0.97, 1.02] |
| 3 Spontaneous vaginal birth | 19 | Risk Ratio (IV, Fixed, 95% CI) | Subtotals only | |
| 3.1 Other support permitted | 9 | 10889 | Risk Ratio (IV, Fixed, 95% CI) | 1.03 [1.00, 1.05] |
| 3.2 Other support not permitted | 10 | 3329 | Risk Ratio (IV, Fixed, 95% CI) | 1.11 [1.07, 1.16] |
| 4 Caesarean birth | 22 | Risk Ratio IV, Fixed, 95% CI) | Subtotals only | |
| 4.1 Other support permitted | 11 | 11326 | Risk Ratio IV, Fixed, 95% CI) | 0.94 [0.85, 1.03] |
| 4.2 Other support not permitted | 11 | 3849 | Risk Ratio IV, Fixed, 95% CI) | 0.75 [0.65, 0.86] |
| 5 Admission to special care nursery | 7 | Risk Ratio IV, Fixed, 95% CI) | Subtotals only | |
| 5.1 Other support permitted | 2 | 7328 | Risk Ratio (IV, Fixed, 95% CI) | 0.99 [0.84, 1.17] |
| 5.2 Other support not permitted | 5 | 1569 | Risk Ratio (IV, Fixed, 95% CI) | 0.91 [0.71, 1.17] |
| 6 Postpartum depression | 2 | Risk Ratio (IV, Fixed, 95% CI) | Subtotals only | |
| 6.1 Other support permitted | 1 | 5567 | Risk Ratio (IV, Fixed, 95% CI) | 0.86 [0.73, 1.02] |
| 6.2 Other support not permitted | 1 | 149 | Risk Ratio (IV, Fixed, 95% CI) | 0.18 [0.09, 0.36] |
| 7 Negative rating of/negative feelings about birth experience | 11 | Risk Ratio (IV, Fixed, 95% CI) | Subtotals only | |
| 7.1 Other support permitted | 5 | 8639 | Risk Ratio (IV, Fixed, 95% CI) | 0.70 [0.62, 0.78] |
| 7.2 Other support not permitted | 6 | 2539 | Risk Ratio (IV, Fixed, 95% CI) | 0.62 [0.56, 0.69] |
| 8 Breastfeeding at 1-2 months postpartum | 3 | Risk Ratio (IV, Fixed, 95% CI) | Subtotals only | |
| 8.1 Other support permitted | 1 | 4559 | Risk Ratio (IV, Fixed, 95% CI) | 0.97 [0.92, 1.02] |
| 8.2 Other support not permitted | 2 | 804 | Risk Ratio (IV, Fixed, 95% CI) | 1.05 [0.98, 1.13] |