Table 1.
Characteristics of the study population.
| Characteristic |
Training set (N = 4,604) |
Temporal test set (N = 1,492) |
P |
|---|---|---|---|
| Age, mean (SD) | 69.2 (12.3) | 68.0 (13.5) | =0.002 |
| Female | 1,896 (41.2) | 531 (35.6) | = <0.001 |
| Hypertension | 3,705 (80.5) | 1,119 (75.0) | = <0.001 |
| Diabetes mellitus | 1,958 (42.5) | 683 (45.8) | =0.028 |
| Hyperlipidemia | 2,670 (58.0) | 852 (57.1) | =0.546 |
| Coronary artery disease | 560 (12.2) | 103 (6.9) | = <0.001 |
| Congestive heart failure | 228 (5.0) | 25 (1.7) | = <0.001 |
| Prior stroke or TIA | 1,143 (24.8) | 274 (18.4) | = <0.001 |
| NIHSS, median (IQR) | 5 (3-10) | 5 (2-8) | = <0.001 |
| AS5F, median (IQR) | 67.4 (59.2–76.5) | 65.8 (56.9–74.2) | = <0.001 |
| CHASE-LESS, median (IQR) | 6 (5-8) | 6 (4-7) | = <0.001 |
Data are numbers (percentage) unless specified otherwise.
IQR, interquartile range; NIHSS, National Institutes of Health Stroke Scale; SD, standard deviation; TIA, transient ischemic attack.