Table 4. Baseline Characteristics of Studies in Systematic Review and Meta-analysis.
| Source | Study Type | No. of Patients | MT, No/Total No. (%) | Age, Mean (SD) | Male, No./Total No. (%) | Occlusion Site (%) | IVT, No/Total No. (%) | Rescue MT, No/Total No. (%) | Confounder Adjustment |
|---|---|---|---|---|---|---|---|---|---|
| Goyal et al,19 2019 | Multicenter | 251 | 138/251 (55.0) | 65 (15) | 133/251 (52.9) | ICA: 17.8; M1-MCA: 48.0; M2-MCA: 31.7 |
121/249 (48.6) | NA | Multivariable regression |
| Nagel et al,25 2018 | Multicenter | 300 | 81/300 (27) | 68 (14) | 162/300 (54) | ICA: 9; tandem: 12; M1-MCA: 27.1; M2-MCA: 43.8; ACA: 3; BA: 21 | 152/300 (50.7) | 34/300 (11.3) | PSM |
| Sarraj et al,16 2018 | Multicenter | 214 | 124/214 (57.9) | 65 (16) | 124/214 (57.9) | ICA: 15.4; MCA-M1: 41.6; MCA-M2: 36; MCA-M3/M4 & ACA: 6.9 | 69/214 (32.2) | NA | Multivariable regression |
| Urra et al,14 2014 | Multicenter | 78 | 34/78 (43.6) | 67.9 | 39/78 (50.0) | ICA: 1.3; MCA-M1: 33.3; MCA-M2: 29.5; tandem: 5.1; posterior: 30.8 | 45/78 (57.7) | 16/78 (20.5) | NA |
Abbreviations: ACA, anterior cerebral artery; BA, basilar artery; ICA, internal carotid artery; IVT, intravenous thrombolysis; MCA, middle cerebral artery; MT, mechanical thrombectomy; NA, not available; PSM, propensity score matching.