Incidence and outcome of out-of-hospital cardiac arrests in the COVID-19 era: A systematic review and meta-analysis.

There was no difference in the use of mechanical CPR devices for OHCA before and during the pandemic, as reported in two studies (14.7% (200/1356) versus 12.5% (65/518); p = 0.24); and did not reach statistical significance (OR = 1.57 95% CI 0.55–4.55; p = 0.40; I 2 = 83%) ( Fig. 3 j). 10 , 11 Automated external defibrillators (AEDs,) reported in five studies, were used more frequently before the pandemic (12.4% (2046/16516) versus 6.8% (168/2471), p < 0.001; OR = 1.78 95% CI 1.06–2.98; p = 0.03; I 2 = 80%) ( Fig. 3 k

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