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Table 3: Demographics in total patients and in patients with WM^m or WM^ms
Total (n = 35) WM^ms (n = 9) WM^m (n = 26) P Value^*
Age (yr; mean ± SD) 66.3 ± 15.7 77.1 ± 6.0 62.6 ± 16.3 .02
Sex (No., % male) 15 (42.9%) 5 (55.6%) 10 (38.5%) .45
Smoking (No., %) 3 (8.6%) 0 (0%) 3 (11.5%) .56
Cardiovascular disease (No., %) 7 (20.0%) 2 (22.2%) 5 (19.2%) .85
Hypertension (No., %) 3 (8.6%) 2 (22.2%) 1 (3.9%) .16
Hyperlipidemia (No., %) 11 (31.4%) 2 (22.2%) 9 (34.6%) .69
Diabetes (No., %) 2 (5.7%) 1 (11.1%) 1 (3.9%) .45
Presentation NIHSS median (IQR) 5 (2–8) 4 (1–6) 5 (2–8) .43
Discharge NIHSS (median) 0.5 (−2) 0.5 (0–2.5) 0.5 (0–1) .81
ARWMC MRI score median (IQR) 12 (8–15) 3 (2–5) 
Note:—NIHSS indicates National Institutes of Health Stroke Scale; MRI, MR imaging; WM^m, mild white matter disease; WM^ms, moderate-to-severe white matter disease; ARWMC, age-related white matter change.
* Obtained by the Wilcoxon rank sum test or the Fisher exact test. P < .05 was considered as significant.