Nutritional assessment and diet risk factors of malnutrition in maintenance hemodialysis patients

Objectives To investigate the nutritional status of maintenance hemodialysis patients and analyze the diet risk factors of malnutrition.Methods Subjective global assessment(SGA) and nutritional risk screening 2002(NRS-2002) were used to evaluate the nutritional status of 150 patients undergoing maintenance hemodialysis,A 3-day retrospective 24-hour diet survey was carried out.Results SGA result showed that 6 patients(4.00%) were at C grade(severe malnutrition),and 56 patients(37.33%) were at B grade(mild or moderate malnutrition).NRS-2002 result showed that 44 patients(29.33%) were malnutritional risk with NRS-2002 score≥ 3.There was no significant difference between the two methods of screening results(χ2=18.155,P=0.109).Biochemistry and somatometric measurement showed that the malnutrition incidence was 6%~75%.Food intake survey indicated that the intakes of energy,protein,fat and other nutrients were significantly lower in maintenance hemodialysis patients than in normal population(P0.05).Age and dialysis duration was positively correlated with the incidence of malnutrition(P0.05).Conclusion The incidence of malnutrition in maintenance hemodialysis patients is high,and the intakes of energy and other nutrients are insufficient.Age and dialysis duration maybe the important cause for malnutrition.