Table 1.

Demographic Information for ICH Cases by Ethnicity/Race

	White Cases	Black Cases	Hispanic Cases	p-value
n	958	880	766
Average Age, years (SD)*	68.6 (13.4)	58.0 (11.9)	59.3 (13.5)	<0.0001
Female, n (%)	422 (44.1)	398 (45.2)	328 (42.8)	0.6177
Hypertension, n (%)	685 (72.3)	753 (86.6)	582 (77.4)	<0.0001
Untreated Hypertension, n (%)**	224 (32.7)	328 (43.6)	273 (46.9)	<0.0001
Heavy Alcohol Use, n (%)	64 (6.8)	96 (11.3)	78 (10.4)	0.0020
Hypercholesterolemia, n (%)	450 (49.5)	278 (33.6)	279 (38.5)	<0.0001
Anticoagulant Use, n (%)	133 (13.9)	41 (4.7)	55 (7.2)	<0.0001
Education Level n (%)
Less than High School	87 (9.1)	193 (22.1)	352 (46.9)
High School	301 (31.6)	315 (36.0)	225 (30.0)
Greater than High School	565 (59.3)	366 (41.9)	174 (23.2)	<0.0001
Medical Insurance Status n (%)	851 (88.8)	580 (65.9)	492 (64.2)	<0.0001
Location
-Lobar n (%)	400 (43.0)	202 (23.3)	207 (28.0)
-Deep n (%)	429 (46.1)	544 (62.8)	410 (55.4)
-Brainstem n (%)	36 (3.9)	58 (6.7)	44 (5.9)
-Cerebellum n (%)	66 (7.1)	63 (7.3)	79 (10.7)	<0.0001
ICH Volume: Geometric Mean (95% CI)***	11.5 (10.6, 12.5)	8.7 (8.0, 9.5)	11.3 (10.3, 12.4)	<0.0001
MRI Imaging, n	274	286	299
Microbleed Positive n (%)	126 (46.0)	170 (59.4)	147 (49.2)
Mean number of microbleeds (95% CI)****	18.0 (10.6–25.3)	14.5 (9.8–19.2)	11.6 (7.6–15.6)

^*P-values for individual ethnic/racial groups are as follows: blacks and Hispanics, p=0.0357, blacks and whites, p<0.0001, Hispanics and whites, p<0.0001

^**Untreated hypertension is presented in reference to the number of subjects with a diagnosis of hypertension

^***P-values for individual ethnic/racial groups are as follows: blacks and Hispanics, p<0.0001, blacks and whites, p<0.0001, Hispanics and whites, p=0.7675

^****Mean number of microbleeds is calculated from the total microbleed positive cases, not from the total number of cases with MRI imaging data available