Clinical characteristics between the NR and PR groups
| Characteristics | NR Group (n = 19) | PR Group (n = 25) | P Value |
|---|---|---|---|
| Age (yr) (mean) (SD) | 48.0 (8.4) | 47.8 (11.0) | .951 |
| Men (No.) (%) | 15 (79.0) | 24 (96.0) | .198 |
| Hypertension (No.) (%) | 13 (68.4) | 16 (64.0) | .759 |
| Hypercholesterolemia (No.) (%) | 19 (100) | 23 (92.0) | .498 |
| Diabetes mellitus (No.) (%) | 5 (26.3) | 3 (12.0) | .409 |
| Smoking (No.) (%) | 11 (57.9) | 19 (76.0) | .202 |
| Obesity (No.) (%) | 5 (26.3) | 2 (8.0) | .219 |
| Three or more risk factors (No.) (%) | 12 (63.2) | 11 (44.0) | .208 |
| Stroke as qualifying event (No.) (%) | 13 (68.4) | 14 (56.0) | .402 |
| NIHSS scores at admission, median (interquartile range) | 0.0 (0.0–2.0) | 0.0 (0.0–0.5) | .419 |
| Time from qualifying event to high-resolution MRI (days) (mean) (SD) | 33.8 (17.4) | 33.8 (20.5) | 1.000 |