Table 1.
Summary of included studies ordered by year of publication.
| First author | Country | Journal | Year | Type | Overall risk of biasa |
|---|---|---|---|---|---|
| Ringh, M.21 | Sweden | Resuscitation | 2011 | Prospective observational | n/a |
| Scholten, A.C.24 | Netherlands | Resuscitation | 2011 | Survey | n/a |
| Henriksen, F.L.38 | Denmark | Abstract | 2012 | n/a | n/a |
| Henriksen, F.L.28 | Denmark | Abstract | 2013 | Prospective observational | n/a |
| Roman, B.29 | Switzerland | Abstract | 2013 | Survey | n/a |
| Zijlstra, J.A.20 | Netherlands | Resuscitation | 2014 | Prospective observational | n/a |
| Henriksen, F.L.28 | Denmark | Abstract | 2014 | Prospective observational | n/a |
| van der Worp, W.31 | Netherlands | Abstract | 2014 | Retrospective observational | n/a |
| Ringh, M.22 | Sweden | N Engl J Med | 2015 | Randomized controlled trial | Low |
| Henriksen, F.L.27 | Denmark | Abstract | 2015 | Prospective observational | n/a |
| Pijls, R.W.25 | Netherlands | Resuscitation | 2016 | Prospective observational | Serious |
| Brooks, S.C.32 | USA | Resuscitation | 2016 | Survey | n/a |
| Smith, C.M.18 | UK | Resuscitation | 2017 | Commentary | n/a |
| Caputo, M.L.19 | Switzerland | Resuscitation | 2017 | Prospective observational | n/a |
| Pijls, R.W.26 | Netherlands | Eur Heart J Acute Cardiovasc Care | 2017 | Prospective observational | n/a |
| Stroop, R.33 | Germany | Abstract | 2017 | Prospective observational | n/a |
| Dainty, K.N.40 | USA | JMIR Mhealth and Uhealth | 2017 | Survey | n/a |
| Berglund, E.43 | Sweden | Resuscitation | 2018 | Prospective observational | n/a |
| Derkenne, C.30 | France | Resuscitation | 2018 | Letter to the Editor | n/a |
| Pijls, R.W.41 | Netherlands | Neth Heart J | 2018 | Observational retrospective | n/a |
| Lee, S.Y.23 | South Korea | Resuscitation | 2019 | Prospective observational | Serious |
| Auricchio, A.34 | Switzerland | Resuscitation | 2019 | Prospective observational | n/a |
| Ng, Y.Y.35 | Singapore | Abstract | 2019 | Observational retrospective | n/a |
| Stroop, R.33 | Germany | Abstract | 2019 | Survey | n/a |
| Stroop, R.36 | Germany | Abstract | 2019 | Prospective observational | n/a |
| Stieglis, R.37 | Netherlands | Abstract | 2019 | Observational retrospective | n/a |
| Pijls, R.W.39 | Netherlands | Neth Heart J | 2019 | Observational retrospective | n/a |
| Del Giudice, D.42 | Italy | Resuscitation | 2019 | Letter to the Editor | n/a |
a
Only for studies included in the meta-analysis.