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Table 1 Baseline characteristics of the included patients

From: The effect of age on outcome after intra-arterial treatment in acute ischemic stroke: a MR CLEAN pretrial study

  Overall Tertile 1 Tertile 2 Tertile 3
22–93 years 22–55 years 56–70 year 71–93 years
Number of patients 315 106 113 96
Age, median (IQR) 63 (52–72) 48 (40–52) 64 (60–68) 77 (73–80)
Male sex, n (%) 168 (53 %) 52 (49 %) 75 (66 %) 41 (43 %)
Systolic blood pressure, mean (SD) 146 (23) 138 (21) 149 (24) 152 (20)
Diastolic blood pressure, mean (SD) 82 (16) 78 (16) 85 (15) 84 (17)
Stroke severity at admission (NIHSS) mean (SD)a 16 (6.0) 15 (5.0) 16 (5.0) 16 (7.0)
Prior treatment with intravenous rtPA, n (%)b 245 (78 %) 77 (73 %) 91 (81 %) 75 (80 %)
Time from onset symptoms to intra-arterial treatment (minutes), mean (SD)c 93 (58) 96 (70) 87 (67) 77 (53)
Use of stent, n (%)d 132 (42 %) 41 (39 %) 52 (46 %) 39 (41 %)
Carotid T top occlusion, n (%)e 25 (8.0 %) 11 (10 %) 11 (10 %) 3 (3.0 %)
  1. SD standard deviation, IQR interquartile range, ER emergency room
  2. a65 unknown (21 %); b13 unknown (4.1 %); c177 unknown (56 %); d4 unknown (0.6 %); e2 unknown (0.6 %)