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Premorbid undernutrition has been proven to have an adverse effect on the prognosis of stroke patients. The evaluation of nutritional status is important, but there is no universally accepted screen methodology. We aimed to use the geriatric nutritional risk index (GNRI) for evaluating the effect of premorbid undernutrition on short-term outcomes in patients with acute ischemic stroke. A total of 1,906 patients were included for analysis. Baseline characteristics were collected. We evaluateddoi:10.1371/journal.pone.0228738 pmid:32053672 fatcat:oiy67kynyzhz7asvi2je3wi42u