Table 1.

Cumulative study outcomes

Outcomes	Prospective	Retrospective	Overall
Favourable neurological outcome CPC1-2 (%)	21 (13–32)	22 (18–25)	21 (18–25)
IHCA only (%)	28 (17–42)	28 (22–35)	28 (22–34)
OHCA only (%)	18 (10–30)	15 (12–18)	16 (13–19)
Overall survival (%)	28 (13–50)	28 (24–32)	28 (24–33)

Results are aggregated using random-effects meta-analysis of proportions or means, as appropriate. Data is presented with 95% confidence interval of the pooled values in brackets. IHCA, in-hospital cardiac arrest; OHCA, out of hospital cardiac arrest