Variable | mRS score at discharge | mRS score at last follow-up | ||||
3–6 (n=36) | 0–2 (n=51) | P value | 3–6 (n=17) | 0–2 (n=44) | P value | |
Age | 67.3±14.4 | 65.7±13.2 | 0.61 | 69.8±15.1 | 64.0±14.2 | 0.17 |
Gender | 0.04 | 0.21 | ||||
Female | 16 (44.4) | 12 (23.5) | 7 (41.2) | 11 (25) | ||
Male | 20 (55.6) | 39 (76.5) | 10 (58.8) | 33 (75) | ||
Race | 0.11 | 0.19 | ||||
Afro-American | 7 (19.4) | 4 (7.8) | 2 (11.8) | 1 (2.3) | ||
White/Caucasian | 29 (80.6) | 47 (92.2) | 15 (88.2) | 43 (97.7) | ||
Past/current smoker | 10 (27.8) | 17 (33.3) | 0.58 | 3 (17.6) | 17 (38.6) | 0.12 |
Diabetes | 12 (33.3) | 20 (39.2) | 0.58 | 8 (47.1) | 14 (31.8) | 0.27 |
Hypertension | 28 (77.8) | 43 (84.3) | 0.44 | 14 (82.4) | 35 (79.5) | 0.80 |
Hyperlipidaemia | 16 (44.4) | 37 (72.5) | 0.008 | 9 (52.9) | 30 (68.2) | 0.27 |
Coronary artery disease | 6 (16.7) | 14 (27.5) | 0.24 | 2 (11.8) | 11 (25) | 0.26 |
Previous stroke/transient ischaemic attack | 13 (36.1) | 21 (41.2) | 0.63 | 8 (47.1) | 17 (38.6) | 0.55 |
Stroke at presentation | 35 (97.2) | 35 (68.6) | <0.001 | 17 (100) | 32 (72.7) | 0.016 |
Stroke mechanism | 0.86 | 0.72 | ||||
Artery-to-artery | 16 (53.3) | 16 (51.6) | 9 (56.3) | 13 (48.1) | ||
Flow-dependent | 6 (20) | 5 (16.1) | 2 (12.5) | 6 (22.2) | ||
Perforator | 8 (26.7) | 10 (32.3) | 5 (31.3) | 8 (29.6) | ||
NIHSS score at presentation | 9.0 [4,15] | 1.0 (0, 3) | <0.001 | 7 [4, 10] | 1.5 (0, 3) | <0.001 |
Percentage of stenosis | 86.9±14.5 | 78.3±14.3 | 0.007 | 82.6±14.4 | 79.4±15.2 | 0.45 |
Length of stenosis | 5.2±3.8 | 4.3±2.4 | 0.19 | 3.7±1.4 | 3.8±2.4 | 0.92 |
Location of stenosis* | 0.002 | 0.087 | ||||
Distal | 2 (5.6) | 4 (7.8) | 1 (5.9) | 3 (6.8) | ||
Mid-basilar | 15 (41.7) | 26 (51.0) | 11 (64.7) | 20 (45.5) | ||
Proximal | 8 (22.2) | 20 (39.2) | 2 (11.8) | 18 (40.9) | ||
Collateral score | 0.99 | 0.99 | ||||
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.