Table 2

Univariate analysis for functional outcome at discharge and last follow-up

VariablemRS score at dischargemRS score at last follow-up
3–6
(n=36)
0–2
(n=51)
P value3–6
(n=17)
0–2
(n=44)
P value
Age67.3±14.465.7±13.20.6169.8±15.164.0±14.20.17
Gender0.040.21
Female16 (44.4)12 (23.5)7 (41.2)11 (25)
Male20 (55.6)39 (76.5)10 (58.8)33 (75)
Race0.110.19
Afro-American7 (19.4)4 (7.8)2 (11.8)1 (2.3)
White/Caucasian29 (80.6)47 (92.2)15 (88.2)43 (97.7)
Past/current smoker10 (27.8)17 (33.3)0.583 (17.6)17 (38.6)0.12
Diabetes12 (33.3)20 (39.2)0.588 (47.1)14 (31.8)0.27
Hypertension28 (77.8)43 (84.3)0.4414 (82.4)35 (79.5)0.80
Hyperlipidaemia16 (44.4)37 (72.5)0.0089 (52.9)30 (68.2)0.27
Coronary artery disease6 (16.7)14 (27.5)0.242 (11.8)11 (25)0.26
Previous stroke/transient ischaemic attack13 (36.1)21 (41.2)0.638 (47.1)17 (38.6)0.55
Stroke at presentation35 (97.2)35 (68.6)<0.00117 (100)32 (72.7)0.016
Stroke mechanism0.860.72
 Artery-to-artery16 (53.3)16 (51.6)9 (56.3)13 (48.1)
 Flow-dependent6 (20)5 (16.1)2 (12.5)6 (22.2)
 Perforator8 (26.7)10 (32.3)5 (31.3)8 (29.6)
NIHSS score at presentation9.0 [4,15]1.0 (0, 3)<0.0017 [4, 10]1.5 (0, 3)<0.001
Percentage of stenosis86.9±14.578.3±14.30.00782.6±14.479.4±15.20.45
Length of stenosis5.2±3.84.3±2.40.193.7±1.43.8±2.40.92
Location of stenosis*0.0020.087
 Distal2 (5.6)4 (7.8)1 (5.9)3 (6.8)
 Mid-basilar15 (41.7)26 (51.0)11 (64.7)20 (45.5)
 Proximal8 (22.2)20 (39.2)2 (11.8)18 (40.9)
Collateral score0.990.99
 High (2–4)2 (6.7)4 (8.9)1 (6.3)4 (9.5)
 Low (0–1)28 (93.3)41 (91.1)15 (93.8)38 (90.5)
  • Values presented as mean±SD, median [P25, P75], median (minimum, maximum) or n (column %).

  • *Excluded patients with complete basilar artery occlusion.

  • NIHSS, National Institutes of Health Stroke Scale;mRS, modified Rankin Scale.