Table 2:

Characteristics of participants grouped by adventitial enhancement category and IPH presence^a

	Adventitial Enhancement				IPH
	Category 0 (n = 7)	Category 1 (n = 16)	Category 2 (n = 24)	P	No. (n = 25)	Yes (n = 22)	P
Age (yr)	68.7 ± 11	71.2 ± 9.6	74.4 ± 9.7	.34	70.5 ± 11	74.8 ± 8.3	.15
Female	2	3	6	.84	9	2	.03
Active smoker	0	5	2	.07	5	2	.27
Diabetes mellitus	2	3	2	.36	4	3	.57
Hypertension	3	9	14	.76	14	12	.58
Hyperlipidemia	4	5	11	.46	11	9	.53
Statin use	5	14	18	.56	21	16	.28
Aspirin use	4	12	13	.40	15	14	.52
TIA/stroke (%)	14	48	63	.02	9	15	.03
Stenosis (%)	53 ± 25	54 ± 30	62 ± 26	.62	47 ± 29	71 ± 19	.002
Maximum wall thickness (mm)	4.63 ± 1.84	4.75 ± 1.55	4.82 ± 1.14	.95	4.42 ± 1.60	5.13 ± 0.99	.04

^aData are expressed as mean ± SD or number of participants. Based on data from reader 1.