Epidural v non-epidural analgesia during labour for backache at 3 and 12 months†
| Outcomes | Follow up | Event rates | RRI (95% CI) | NNH |
|---|---|---|---|---|
| †Abbreviations defined in glossary; RRR, RRI, NNT, NNH, and CI calculated from data in article. | ||||
| Low backache | 3 months | 35% v 34% | 0.4% (−26 to 36) | Not significant |
| 12 months | 35% v 27% | 28% (−7.3 to 79) | Not significant | |
| Middle backache | 3 months | 22% v 20% | 8.7% (−29 to 68) | Not significant |
| RRR (CI) | NNT | |||
| 12 months | 16% v 16% | 1.0% (−63 to 40) | Not significant | |