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Table 1: 
Univariable analysis of characteristics associated with perfusion imaging selection
Perfusion Selection (n = 76)NCCT Selection (n = 138)P Value
Age (yr)<.001
    Mean (SD)72.4 (14.1)64.4 (16.3)
Male, No. (%)26 (34.2)61 (44.2).154
Onset to arrival time (min).520
    Median (IQR)245 (123.5–300.0)241.5 (180.0–320.0)
Initial NIHSS score.018
    Median (IQR)18 (13–20)19 (16–22)
Initial THRIVE score.529
    Median (IQR)4 (3–5)4.5 (3–6)
IV tPA prior to ERT, No. (%)31 (40.8)67 (48.6).275
Location of occlusion, No. (%)<.001
    Middle cerebral artery68 (89.5)91 (65.9)
    Internal carotid artery8 (10.5)47 (34.1)
Mode of IA therapy.028
    Lytic only3 (3.8)0
    Mechanical only44 (57.9)95 (68.8)
    Lytic + mechanical29 (38.2)43 (31.2)
Onset-to-GP time in minutes.366
    Median (IQR)348 (225.75–399.75)309 (245.5–375.0)
Symptomatic hemorrhage, No. (%)4 (5.3)17 (12.3).148
TICI 2b/3 reperfusion, No. (%)46 (62.5)65 (47.1).036
Year.215
    20074 (5.3)15 (10.9)
    20089 (11.8)22 (15.9)
    200918 (23.7)29 (21.0)
    201017 (22.4)35 (25.4)
    201115 (19.7)27 (19.6)
    201213 (17.1)10 (7.2)
  • Note:—IQR indicates interquartile range; IA, intra-arterial; GP, groin puncture.