Table 2:

Univariate analysis comparing patients with moderate hypoperfusion (HIR ≤ 0.447) with patients with severe hypoperfusion (HIR > 0.447)a

Low HIR (≤0.447)High HIR (>0.447)P Value
No.3131
Age (yr) (mean) (SD)67.5 (13.2)75.4 (13.7).02
Female (%) (No.)51.6 (16)45.2 (14).8
Arterial hypertension (%) (No.)80.6 (25)87.1 (27).73
Diabetes mellitus (%) (No.)16.1 (5)25.8 (8).53
Smoking (%) (No.)38.7 (12)9.7 (3).02
Hypolipoproteinemia (%) (No.)54.8 (17)46.4 (15).9
Atrial fibrillation (%) (No.)35.5 (11)45.2 (14).6
No. of sections with FHV (median) (IQR)3 (1–7)7 (4–10)<.01
NIHSS score on admission (median) (IQR)5 (4–13)15 (11–18)<.001
Baseline lesion volume (mL) (median) (IQR)1.5 (0.27–5.8)6.7 (2.3–28.2)<.01
Infarct growth (median) (IQR)1.6 (0.2–10.6)6.2 (1.4–39.0)<.01
Baseline perfusion deficit (mL) (median) (IQR)41.2 (15.8–101.7)117.1 (56.0–171.6)<.01
Tmax ≥ 2 sec75.6 (24.7–179.4)143.1 (70.5–170.2).08
Tmax ≥ 8 sec10.5 (3.7–61.9)88.2 (43.7–122.6)<.001
Vessel-occlusion size:.47
    Large (%) (No.)19.4 (6)9.7 (3)
    Medium (%) (No.)80.6 (25)90.3 (28)
    Small (%) (No.)0 (0)0 (0)
Recanalization (%) (No.)70 (21)58.1 (18).43
Favorable outcome at 3 months (%) (No.)75.9 (22)32.3 (10)<.01
  • a A Fisher exact test and Mann-Whitney U test were used for categoric and continuous variables, respectively.