Table 1 Demographic and Clinical Characteristics of Cases by Ethnic Group
|  | All(N = 324) | Tujia(N = 178) | Miao(N = 95) | Han(N = 51) |
|---|---|---|---|---|
Age (years) | 61.6 (11.4) | 62.4 (11.2) | 60.9 (12.3) | 60.3 (10.2) |
Women | 98 (30.2) | 62 (34.8) | 26 (27.4) | 10 (19.6) |
TOAST classification | ||||
 Large-artery atherosclerosis | 134 (41.4) | 71 (39.9) | 41 (43.2) | 22 (43.1) |
 Cardioembolism | 15(4.6) | 13(7.3) | 2(2.1) | – |
 Small-vessel occlusion | 168 (51.9) | 90 (50.6) | 50 (52.6) | 28 (54.9) |
 Stroke of other determined etiology | 4(1.2) | 2(1.1) | 1(1.1) | 1(2.0) |
 Stroke of undetermined etiology | 3(0.9) | 2(1.1) | 1(1.1) | – |
NIHSS score | ||||
 0(no stroke symptoms) | 45 (13.3) | 26 (14.6) | 10 (10.5) | 6 (11.8) |
 1–4(minor stroke) | 170 (50.1) | 81 (45.5) | 58 (61.1) | 25 (49.0) |
 5–15(moderate stroke) | 115 (33.9) | 66 (37.1) | 27 (28.4) | 18 (35.3) |
 16–20(moderate to severe stroke) | 9(2.7) | 5(2.8) | – | 2(3.9) |
CT or MRI of brain | 324 (100.0) | 178 (100.0) | 95 (100.0) | 51 (100.0) |
ECG | 324 (100.0) | 178 (100.0) | 95 (100.0) | 51 (100.0) |