Table 1.

Basic characteristics of patient cohorts

Characteristics	Cohort
Characteristics	TIA^a (n = 49)	Control (n = 36)
Age (mean ± SD y)^b	65.6 ± 14.6	60.2 ± 12.2
Sex (F/M)	27/22	24/12
MR imaging delay median (h)^c	6.5	N/A
ABCD² score median	4	N/A
Prior TIA, n (%)^d	9 (18.4)	0 (0)
Coronary artery disease, n (%)^d	10 (20.4)	3 (8.3)
Atrial fibrillation, n (%)^b	1 (2.0)	1 (2.8)
Hyperlipidemia, n (%)^d	24 (49.0)	5 (13.9)
Hypertension, n (%)^d	31 (63.3)	7 (19.4)
Diabetes, n (%)^d	9 (18.4)	2 (5.6)

↵a Diagnosis of TIA was made clinically without ASL imaging.
↵b No significant difference exists between the groups.
↵c Based on 40 patients, data were not available for 9 patients.
↵d Significant differences exist between the groups, P < .001.