Validación de la herramienta de tamizaje de malnutrición Graz versus la Mini Evaluación Nutricional (MNA), en pacientes adultos hospitalizados y elaboración de una nueva herramienta de cribado nutricional.

Abstract

The objective in this research was to determine the validity of the Graz Malnutrition Screening Tool (GMS) vs the Mini Nutritional Assessment (MNA) tool and to compare them with anthropometric indicators in hospitalized older adults. The GMS and MNA malnutrition screening tools were applied in 10 patients from 65 years of age and older. The anthropometric indicators were evaluated: middle arm circumference, calf circumference, sum of triceps and sub scapular fold folds. To determine the association of the screening, the Cohen kappa coefficient was applied and the sensitivity and specificity of MSG were calculated, for the reliability of the tests the Cronbach alpha test was performed. The prevalence of malnutrition was 87.50% for MSG and for MNA was 70% and 20% was at risk of poor nutrition. The Cronbach alpha index showed that GMS is unreliable (0.375) to give a diagnosis, with sensitivity of 82.5% and valid to determine poor nutrition in hospitalized elderly patients. The GMS and MNA tools compared with the calf circumference confirm a sensitive prediction of poor nutrition. When comparing GMS vs. MNA through Kappa Cohen coefficient, there is an acceptable agreement in the results of the tests carried out. It is recommended to expand the study population to be more reliable and specific.