Screening for malnutrition in the elderly population: a tool for estimating height from knee height
Keywords:Malnutrition, MNA Questionnaire, Height, Knee heigh
Malnutrition in old age is a significant problem. Body Mass Index predicts disease risk both in those termed underweight and in those who are obese. However, BMI may be unreliable in the presence of confounding factors and reliable estimation of height is difficult in the elderly because of vertebral compression, loss of muscle tone and postural changes. Mini Nutritional Assessment is a widely used international questionnaire to evaluate nutritional status of elderly. However, performing MNA is time consuming. The aim of the present study was to develop predictive equations to estimate height from knee height in elderly population. The malnutrition assessed using these equations shows fairly better agreement with malnutrition assessed using MNA questionnaire compared with malnutrition assessed using actually measured height and weight.
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