Table 1. Demographics.
| Demographics | A1 absent | A1 present | P value |
|---|---|---|---|
| Age, median (min-max) [IQR], y | 65 (29-97) [57-79] | 63 (19-103) [54-73] | .016* |
| Gender, female, n (%) | 31/68 (45.6) | 476/1078 (44.2) | .818 |
| Race, n (%) | .673 | ||
| White | 15/68 (21.1) | 321/1073 (29.9) | |
| Black | 51/68 (75.0) | 709/1073 (66.1) | |
| HLD, n (%) | 35/67 (52.2) | 439/1065 (41.2) | .199 |
| HTN, n (%) | 58/67 (86.6) | 815/1067 (76.4) | .155 |
| DM, n (%) | 22/66 (36.3) | 352/1063 (33.1) | .971 |
| Smoking, n (%) | 20/67 (29.9) | 377/1055 (35.7) | .329 |
| Admission NIHSS, median (min-max) [IQR] | 5 (0-29) [2.5-10.5] | 5 (0-39) [3-12] | .676 |
| Prior stroke, n (%) | 32/67 (47.8) | 422/1077 (39.2) | .299 |
| tPA was given, n (%) | 19/68 (27.9) | 309/1078 (28.7) | .898 |
| TOAST, n (%) | .292 | ||
| Cardioembolic | 16/68 (23.5) | 247/1074 (23.0) | |
| Large vessel | 15/68 (22.1) | 237/1074 (22.1) | |
| Small vessel disease | 21/68 (30.9) | 217/1074 (20.2) | |
| Cryptogenic, >1 cause | 1/68 (1.5) | 36/1074 (3.4) | |
| Cryptogenic, no cause | 9/68 (13.2) | 221/1074 (20.6) | |
| Other | 6/68 (8.8) | 116/1074 (10.8) | |
| ACA involved in the stroke, n (%) | 9/68 (13.2) | 97/1078 (9.0) | .242 |
| MCA involved in the stroke, n (%) | 25/68 (36.8) | 509/1078 (47.2) | .094 |
| PCA involved in the stroke, n (%) | 5/68 (7.4) | 138/1078 (12.8) | .187 |
Abbreviations: ACA, anterior cerebral artery; DM, diabetes mellitus; HLD, hyperlipidemia; HTN, hypertension; IQR, interquartile range; MCA, middle cerebral artery; NIHSS, National Institute of Health Stroke Scale; PCA, posterior cerebral artery; TOAST, Treatment of Acute Stroke Trial; tPA, tissue plasminogen activator.
*
Statistical significance was defined as p < 0.05.