Association between malnutrition, clinical parameters and health-related quality of life in elderly hospitalized patients with Parkinson's disease: A cross-sectional study.

Elderly male persons with longer PD duration and higher disease stages are more likely to be malnourished or at risk for malnutrition. Malnutrition was mainly associated with poor emotional well-being, suggesting that treatment of depression and anxiety beside diet and physical activity can help improving nutrition status in these subjects. The MNA should not be used independent of other measures of cognition and depression in people with advanced PD.