Table 1.
Characteristics of the Included Studies.
| Author | Country (city) | Study design | Study period | Study site | Age (year) | Male | Outcomes | Number of COVID-19 case | Quality |
|---|---|---|---|---|---|---|---|---|---|
| Al-Samkari et al, 2020 | USA | Retrospective multi-center | Mar 1 to Apr 5 2020 | ICU and GW | 62.5 | 57% | VTE | 400 | 17 |
| Artifoni et al, 2020 | French (Nantes) | Retrospective multi-center | Mar 25 to Apr 10 2020 | GW | 64 (46-75) | 60% | PE, DVT | 71 | 14 |
| Bompard et al, 2020 | French (Paris) | Retrospective multi-center | Mar 1 to Apr 116 2020 | ICU and GW | 64 (54-76) | 70% | PE | 135 | 16 |
| Cui et al, 2020 | China (Wuhan) | Retrospective single-center | Jau 30 to Mar 22, 2020 | ICU | 60 (14.1) | 46% | VTE | 81 | 17 |
| Demelo-Rodríguez et al, 2020 | Spain (Madrid) | Prospective single-center | First half of April 2020 | GW | 68.1 (14.5) | 65% | DVT | 156 | 16 |
| Desborough et al, 2020 | UK (London) | Retrospective single-center | Mar 3 to 31 2020 | ICU | 59 (49-66) | 73% | VTE | 66 | 14 |
| Helms et al, 2020 | French (Paris) | Prospective multi-center | Mar 3 to 31 2020 | ICU | 63 (53-71) | 81.00% | PE, DVT | 150 | 17 |
| Hippensteel et al, 2020 | USA (Aurora) | Retrospective single-center | Mar 18 to Apr 14 2020 | GW | 56 | 58.00% | PE, VTE, DVT | 61 | 14 |
| Klok et al, 2020 | Netherlands (Paris) | Retrospective multi-center | Mar 7 to Apr 5 2020 | ICU | 64 (12) | 76% | PE, DVT | 184 | 18 |
| Leonard-Lorant et al, 2020 | French (Paris) | Retrospective multi-center | March 1 to 31 2020 | ICU and GW | 64 (22) | 66% | PE | 106 | 14 |
| Llitjos et al, 2020 | French (Paris) | Retrospective multi-center | Mar 19 to Apr 11 2020 | ICU | 68 (51-74) | 77% | PE, VTE | 26 | 13 |
| Lodigiani et al, 2020 | Italy (Milan) | Retrospective single-center | Feb 13 to Apr 10 2020 | ICU | 66 (55-85) | 68% | PE, VTE, DVT | 388 | 16 |
| Middeldorp et al, 2020 | Netherlands (Amsterdam) | Retrospective single-center | Mar 2 to Apr 12, 2020 | ICU and GW | 61 (14) | 66% | PE, VTE, DVT | 198 | 16 |
| Nahum et al, 2020 | Germany (Nord) | Retrospective single-center | Mar to Apr 2020 | ICU | 62 (8.6%) | 78% | DVT | 34 | 13 |
| Poissy et al, 2020 | French (Lille) | Retrospective single-center | Feb 27 to Mar 31, 2020 | ICU | 57 (29-80) | 59% | PE, DVT | 107 | 15 |
| Ren et al, 2020 | China (Wuhan) | Retrospective single-center | Feb 27 to Mar 31, 2020 | ICU | 57 (62-80) | 54% | DVT | 48 | 10 |
| Stoneham et al, 2020 | UK (Brighton) | Retrospective multi-center | Mar 20 to Apr 16 2020 | ICU and GW | NA | NA | PE, VTE, DVT | 274 | 16 |
| Thomas et al, 2020 | UK (Cambridge) | Retrospective single-center | to Apr 14, 2020 | ICU | 20-89 | NA | PE, VTE | 63 | 14 |
| Voicu et al, 2020 | French (Paris) | Prospective single-center | Mar 13 to Apr 3 2020 | ICU and GW | NA | NA | DVT | 56 | 14 |
| Zhang et al, 2020 | China (Wuhan) | Retrospective single-center | Jan 29 to Feb 29, 2020 | GW | 63 (14) | 52% | DVT | 143 | 16 |
DVT, deep vein thrombosis; GW, general ward; ICU, intensive care unit; NA, not available; PE, pulmonary embolism; VTE, venous thromboembolic event.