Summary of included studies
Study | Country | COVID-19 period Patients (n) | Comparison period Patients (n) | Metrics included in meta-analysis | Included a CSC |
Aboul-Nour 202118 | USA | 121 | 264 | LKW, DTI | Yes |
Agarwal 202019 | USA | 120 | 634 | LKW, DTI, DTN, DTR, DTG | Yes |
Altschul 20208 | USA | 36 | 44 | LKW, DTG | Yes |
Amukotuwa 202011 | Australia | 243 | 1818 | DTI | Yes |
Aref 202120 | Egypt | 136 | 118 | LKW | No |
Candelaresi 202121 | Italy | 148 | 327 | DTI, DTN, DTG | Yes |
Chen 202122 | China | 135 | 128 | LKW, DTI, DTN | No |
Cummings 202023 | USA | 613 | 5239 | LKW, DTN | Yes |
D'Anna 202124 | UK | 514 | 353 | LKW, DTI, DTN, DTG | Yes |
Ghoreishi 202025 | Iran | 232 | 355 | LKW, DTN | No |
Gu 202126 | China | 99 | 153 | LKW, DTN | No |
Huo 202127 | China | 36 | 70 | LKW | Yes |
Jasne 202028 | USA | 211 | 167 | LKW, DTN, DTR | Yes |
John 202016 | UAE | 130 | 109 | LKW, DTN, DTG | Yes |
Katsanos 202029 | Canada | 18 | 11 | LKW, DTI, DTN, DTR, DTG | Yes |
Kwan 202030 | UK | 28 | 33 | DTR, DTG | No |
Li 202131 | China | 21 | 42 | LKW, DTG | No |
Luo 202132 | China | 315 | 377 | LKW, DTN, DTG | No |
Mag Uidhir 202033 | UK | 703 | 755 | DTI, DTN | Yes |
Mitra 202034 | Australia | 52 | 57 | LKW, DTI | Yes |
Naccarato 202035 | Italy | 16 | 29 | LKW, DTN, DTG | No |
Nagamine 20209 | USA | 48 | 64 | LKW, DTI, DTN, DTG | Yes |
Neves-Briard 202017 | Canada | 156 | 138 | LKW, DTI, DTN, DTR, DTG | Yes |
Padmanabhan 202036 | UK | 101 | 167 | LKW, DTN, DTG | Yes |
Paliwal 202037 | Singapore | 144 | 206 | LKW, DTI, DTN, DTG | Yes |
Plumereau 202038 | France | 101 | 107 | LKW, DTI, DTN, DTG | Yes |
Rinkel 202039 | Netherlands | 309 | 407 | LKW, DTI, DTN, DTG | Yes |
Rudilosso 202040 | Spain | 68 | 83 | LKW, DTI, DTN, DTG | Yes |
Siegler 202041 | USA | 53 | 275 | LKW, DTI, DTN | Yes |
Tan 202142 | China | 110 | 173 | LKW, DTN, DTG | Yes |
Tejada-Meza 202043 | Spain | 304 | 492 | LKW, DTN, DTG | No |
Teo 202010 | China | 73 | 89 | LKW, DTN, DTG | Yes |
Uchino 202044 | USA | 188 | 717 | LKW, DTI, DTN, DTG | Yes |
Velilla-Alonso 202145 | Spain | 83 | 112 | LKW, DTI, DTN, DTG | No |
Wang 202046 | USA | 255 | 320 | DTN, DTG | No |
Yang 202047 | China | 21 | 34 | LKW, DTR, DTG | Yes |
Zhang 202148 | China | 23 | 32 | LKW, DTG | Yes |
Zini 202049 | Italy | 145 | 138 | LKW, DTI, DTN, DTR, DTG | Yes |
Total | 6109 | 14 637 |
Studies are categorized in the following order: first author name and year, country of the first author’s affiliation, the number of participants in the COVID-19 period and the pre-COVID-19 period, the time metrics that were reported in each study and included in analysis, and whether the study included a comprehensive stroke center.
CSC, comprehensive stroke center; DTG, door-to-groin; DTI, door-to-imaging; DTN, door-to-needle; DTR, door-to-reperfusion; LKW, last-known-well.