Complications were assessed immediately after admission and continuously until they left hospital or were transferred to a rehabilitation unit. Clinical outcomes were measured three months later.
The percentage of undernourished patients increased during the hospital stay, increasing from, 12.2% on admission to nearly one in five (19.8%) after a week.
Patients undernourished after a week were 4.49 times more likely to have poor clinical outcomes, the study showed.
Archives of Neurology (2008) 65: 39-43