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Table 1: Baseline characteristics (n = 296)^a
Characteristics No. Values
Baseline demographics and medical history 
    Age (mean) (yr) 296 69.5 ± 13.8
    Men 296 150 (50.7)
    Hypertension 288 158 (54.9)
    Diabetes 285 50 (17.4)
    Dyslipidemia 284 93 (32.7)
    Current smoking 272 70 (25.7)
    Previous stroke or TIA 286 43 (15.0)
    Previous CAD 285 50 (17.5)
    Antithrombotic medications 291 120 (41.2)
        Antiplatelet 291 69 (23.7)
        Anticoagulant 291 34 (11.7)
Current stroke event 
    Systolic BP (mean) (mm Hg) 245 148 ± 28
    Diastolic BP (mean) (mm Hg) 245 82 ± 19
    Blood glucose (median) (IQR) (mmol/L) 229 6.4 (5.7–8.0)
    Admission NIHSS score (median) (IQR) 290 16 (11–21)
    ASPECTS (median) (IQR) 278 7 (6–9)
    Prestroke mRS ≥1 291 64 (22.0)
Site of occlusion 
    M1 MCA 296 124 (41.9)
    M2 MCA 40 (13.5)
    T-car 54 (18.2)
    Tandem 39 (13.2)
    Vertebrobasilar 39 (13.2)
Stroke etiology 
    Large-artery atherosclerosis 295 44 (14.9)
    Cardioembolic 127 (43.1)
    Dissection 11 (3.7)
    Others 113 (38.3)
Intravenous rtPA 294 142 (48.3)
General anesthesia 291 71 (24.4)
Procedural times (median) (IQR) (min) 
    Onset to imaging 279 113 (84–180)
    Admission to imaging 248 25 (16–41.5)
    Imaging to groin puncture 262 107 (69–151)
    Imaging to recanalization 279 157 (118–205)
    Onset to puncture 276 242 (186–324)
    Puncture to recanalization 287 40 (25–65.5)
Balloon-guide catheter 296 23 (7.8)
Mode of admission 
    Mothership 295 121 (41.0)
    Drip and ship 174 (59.0)
    Sofia catheter 
        5F 296 70 (23.7)
        6F 226 (76.3)
Note:—BP indicates blood pressure; CAD, coronary artery disease; T-car, occlusion of carotid terminus; Mothership, comprehensive stroke centers with on-site interventional neuroradiologic services; Drip and ship, medical treatment (including intravenous thrombolysis) in a hospital before being transferred to a comprehensive stroke centers for thrombectomy.
↵a Values are expressed as No. (percentage) unless otherwise indicated.