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Functional improvement of patients who were alive at the time of discharge (n = 87) according to leukoaraiosis severity (unadjusted). Compared with patients with absent-to-moderate leukoaraiosis, patients with severe leukoaraiosis are significantly less likely to have any improvement on the mRS from discharge to 90 days (50% versus 79% of surviving patients [21% versus 59% of all patients, respectively]; P = .034; darker shades indicate less improvement).
