ABCD3-I and ABCD2 Scores in a TIA Population with Low Stroke Risk

Table 3

The 1-week, 3-month, and 1-year risks of stroke according to cutoff values of the ABCD2 and ABCD3-I scores with corresponding AUC levels.

		Stroke events (% of patients)
	Patients, (%)	<1 week	<3 months	<1 year
ABCD2 score
0-3	108 (35.4)	1 (0.9)	2 (1.9)	3 (2.8)
4-7	197 (64.6)	2 (1.0)	8 (4.1)	13 (6.6)
AUC (95% CI)		0.55 (0.24-0.86)	0.55 (0.42-0.68)	0.63 (0.50-0.76)
ABCD3-I score
0-3	72 (23.6)	0	0	1 (2.1)
4-7	193 (63.3)	2 (1.0)	7 (3.6)	11 (5.7)
8-13	40 (13.1)	1 (2.5)	3 (7.5)	4 (10.0)
AUC (95% CI)		0.72 (0.54-0.89)	0.66 (0.53-0.80)	0.68 (0.56-0.79)
Total no. of strokes	305 (100)	3 (1.0)	10 (3.3)	16 (5.2)