Table 3 The 1 week, 3 months and 1 Year Risks of Stroke According to Each Stratum of the ABCD2 Score and Dichotomized Score, with Corresponding AUC Levels for each Time Point
From: Stroke risk after transient ischemic attack in a Norwegian prospective cohort
ABCD2 score | Patients, n (%) | Stroke events (% of patients) | ||
|---|---|---|---|---|
< 1 week | < 3 months | < 1 year | ||
0 | 7 (1.2) | 0 | 0 | 0 |
1 | 15 (2.6) | 0 | 0 | 0 |
2 | 62 (10.8) | 0 | 0 | 1 (1.6) |
3 | 122 (21.1) | 1 (0.8) | 4 (3.3) | 5 (4.1) |
4 | 177 (30.7) | 2 (1.1) | 6 (3.4) | 10 (5.6) |
5 | 107 (18.5) | 0 | 3 (2.8) | 4 (3.7) |
6 | 68 (11.8) | 2 (2.9) | 6 (8.8) | 9 (13.2) |
7 | 19 (3.3) | 0 | 0 | 2 (10.5) |
< 4 | 206 (35.7) | 1 (0.5) | 4 (1.9) | 6 (2.9) |
≥4 | 371 (64.3) | 4 (1.1) | 15 (4.0) | 25 (6.7) |
Total | 577 (100) | 5 (0.9) | 19 (3.3) | 31 (5.4) |
AUCa (95% CI) | 0.62 (0.39–0.85) | 0.62 (0.51–0.74) | 0.64 (0.54–0.75) | |