TABLE 1.
Characteristics of Included Studies
| References | Country | Study Center(s) | Study Duration | Study Design | Mortalitya |
|---|---|---|---|---|---|
| Lim (31) | United Kingdom | 1 | January 2012 to January 2016 | Retrospective, cohort | 30-d mortality |
| Akanni et al (32) | United States | 1 | January 2010 to October 2014 | Retrospective, cohort | Hospital mortality |
| Garan et al (33) | United States | 1 | April 2015 to March 2017 | Prospective, cohort | Hospital mortality |
| Gonçalves-Teixeira (30) | Portugal | 1 | 2011–2018 | Retrospective, cohort | Hospital mortality |
| Axtell et al (34) | United States | 1 | January 2009 to January 2019 | Retrospective, cohort | Hospital mortality |
| Schrage et al (16) | Germany, United States, France, Italy | 16 | 2005–2019 | Retrospective, cohort | 30-d mortality |
| Mørk et al (35) | Denmark | 4 | July 2011 to December 2020 | Retrospective, cohort | 30-d mortality |
| Vakil et al (36) | United States | 1 | January 2018 to June 2020 | Prospective, cohort | Hospital mortality |
| Thevathasan et al (20) | Germany | 3 | January 2016 to June 2021 | Retrospective, cohort | 30-d mortality |
| Alonso-Fernandez-Gatta et al (37) | Spain | 1 | 2013 to October 2020 | Retrospective, cohort | Hospital mortality |
| Gaisendrees et al (38) | Germany | 1 | January 2016 to December 2020 | Retrospective, cohort | Hospital mortality |
| Mørk et al (39) | Denmark | 1 | January 2015 to December 2019 | Retrospective, cohort | Hospital mortality |
| Unoki et al (21) | Japan | 1 | January 2012 to January 2020 | Retrospective, cohort | Hospital mortality |
a
In-hospital mortality was requested for meta-analysis from corresponding authors of all included studies.