Table 5. Incidence of stroke types^a and ischemic stroke sub-types by race/ethnicity.

Variable	South Asian N = 273	White N = 2156	African American N = 605	Hispanic N = 256	Total N = 3290	Pb
Clinical Diagnosis, %
Ischemic Stroke	49.8	47.0	47.4	41.0	46.8	0.0040 (South Asians vs. Whites p = 0.1843; South Asians vs. AAs p = 0.0866; and South Asians vs. Hispanics p = 0.1502)
Transient Ischemic Attack	30.4	36.3	37.4	34.3	35.8
Hemorrhagic Stroke	17.6	14.9	13.9	21.5	15.5
Subarachnoid	4.4	3.3	4.1	8.2	3.9
Intracerebral	13.2	11.6	9.8	13.3	1.6
Unspecified	0.7	0.7	1.0	0.4	0.7
No Stroke Diagnosis	1.5	0.6	0.2	1.6	0.6
c Stroke etiology, %	n = 136	n = 1013	n = 287	n = 105	n = 1541
Large-artery atherosclerosis	26.5	23.1	20.2	30.5	23.4	0.0013 (South Asians vs. Whites p = 0.0123; South Asians vs. AAs p = 0.0920; and South Asians vs. Hispanics p = 0.1164)
Small-artery occlusions	29.4	22.0	23.0	23.8	23.0
Cardioembolism	8.1	19.7	11.9	15.2	16.9
Other	35.3	34.2	43.2	27.7	35.5
Determined	0.7	2.7	4.5	2.9	2.9
Undetermined	34.6	31.5	38.7	24.8	32.6

^aOn average less than 3% of data was missing. Missing data was largely among Hispanics and ranged from 1.2 to 2.9%.

^bP-values from chi-square tests for overall race/ethnicity effect followed by pairwise comparison between race/ethnicities. A significant level of 0.05 was used for the overall race/ethnicity comparisons. Bonferroni adjustments created a significance level of 0.05/2 = 0.025 (since South Asians were to each race/ethnicity at a time).

^cIschemic stroke classification scheme from the Trial of ORG 10172 in Acute Stroke Treatment (TOAST).