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Received July 20, 2015 Accepted December 17, 2015 Stable isotope ratios of nitrogen (δN) and carbon (δC) in scalp hair of elderly patients who received enteral nutrition for long periods were analyzed to assess nutritional status: the δN and δC in the hair of patients who received enteral nutrition were compared with those of healthy persons, respectively. The average values of the δN and δC in the hair of patients who received enteral nutrition (n = 19) were higher and lower than those of healthy persons (n = 17), respectively. A negative correlation was observed between the δN in the hair of patients and the dose of energy (r = – 0.490, P < 0.05), whereas positive correlation was found between the δC and the dose of energy (r = 0.563, P < 0.05). The δN and δC in scalp hair may be good indicators for assessing the nutritional status of the elderly patients who received enteral nutrition for long period.

Nutritional Assessment Using Stable Isotope Ratios of Nitrogen and Carbon in Scalp Hair of Patients Who Received Enteral Nutrients