Table 1.
Summary findings from two meta-analyses of a total of 1 randomised trial and 18 observational studies.9, 10
| Setting | Study type | Pre-hospital ROSC | Survival to discharge/30 days | Survival with favourable neurological outcome | |
|---|---|---|---|---|---|
| Loomba | OHCA n = 655 853 |
1 randomised 13 observational |
Odds ratio 2.84 (95% CI 2.28–3.54) |
Odds ratio 1 month 1.03 (95% CI 0.70–1.34) Discharge 0.82 (95% CI 0.46–1.48) |
0.51 (95% CI 0.31–0.84) |
| Atiksawedparit | OHCA n = 637,078 |
1 randomised 14 observational |
Relative risk 2.89 (95% CI: 2.36,−3.54) |
Relative risk 0.69, (95% CI 0.48–1.00) |
Not reported |