Active compression-decompression cardiopulmonary resuscitation (ACDR CPR) v standard manual cardiopulmonary resuscitation (STR) for out of hospital cardiac arrest*
| Outcomes | Weighted event rates | RRR (95% CI) | NNT (CI) | ||
|---|---|---|---|---|---|
| Number of studies (n) | ACDR CPR | STR | |||
| *Abbreviations defined in glossary; RRR, RRI, NNT, NNH, and CI calculated from data in article using a fixed effects model. | |||||
| Immediate mortality | 10 (4162) | 73% | 75% | 2% (−1 to 6) | Not significant |
| Mortality before hospital discharge | 9 (3412) | 93% | 94% | 1% (−1 to 2) | Not significant |
| RRI (CI) | NNH (CI) | ||||
| Any neurological impairment | 5 (144) | 27% | 16% | 71% (−10 to 225) | Not significant |
| Complications | 7 (3032) | 8% | 7% | 9% (−14 to 38) | Not significant |