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Table 1 Characteristics of patients stratified by age

From: Stroke risk factors, subtypes and outcome in elderly Thai patients

Characteristic Patients aged 45–74 years Patients aged ≥ 75 years Total p-value
n = 356 n = 186 n = 542
Male: n (%) 144 (40.4%) 99 (53.2%) 243 (44.8%) 0.005
TIA: n (%) 34 (63%) 20 (37%) 54 (9.96%) 0.657
Risk factors: n (%)
 History of diabetes mellitus 124 (34.8%) 76 (40.9%) 200 (36.9%) 0.167
 History of hypertension 248 (69.7%) 150 (80.6%) 398 (73.4%) 0.006
 History of dyslipidemia 203 (57.0%) 113 (60.8%) 316 (58.3%) 0.403
 Atrial fibrillation 51 (14.3%) 72 (38.7%) 123 (22.7%) < 0.001
 Smoking 27 (7.6%) 5 (2.7%) 32 (5.9%) 0.022
 Previous stroke 63 (17.7%) 50 (26.9%) 113 (20.8%) 0.012
 Previous TIA 11 (3.1%) 3 (1.6%) 14 (2.6%) 0.301
 Previous MI 31 (8.7%) 23 (12.4%) 54 (10.0%) 0.177
 NIHSS on admission (mean ± SD) 6.36 ±  0.33 7.20 ±  0.57 6.65 ± 0.29 0.745
Stroke subtype: n (%)
 Large artery atherosclerosis 100 (28.1%) 30 (16.1%) 130 (24.0%) 0.005
 Cardioembolism 75 (21.1%) 81 (43.5%) 156 (28.8%) < 0.001
 Small vessel occlusion 108 (30.3%) 41 (22.0%) 149 (27.5%) 0.085
 Other determined 7 (2.0%) 1 (0.5%) 8 (1.5%) 0.498
 Undetermined 66 (18.5%) 33 (17.5%) 99 (18.3%) 0.859