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Nutrición Hospitalaria

On-line version ISSN 1699-5198Print version ISSN 0212-1611

Nutr. Hosp. vol.31 n.3 Madrid Mar. 2015

https://dx.doi.org/10.3305/nh.2015.31.3.8173 

ORIGINAL / Valoración nutricional

 

Assessment of the reliability and consistency of the "Malnutrition Inflammation Score" (MIS) in Mexican adults with chronic kidney disease for diagnosis of protein-energy wasting syndrome (PEW)

Evaluación de fiabilidad y consistencia de la herramienta "malnutrition inflammation score (MIS)" en adultos mexicanos con enfermedad renal crónica para diagnóstico del sindrome de desgaste proteínico energético (DPE)

 

 

Ailema Janeth González-Ortiz1,2, Celene Viridiana Arce-Santander2, Olynka Vega-Vega2, Ricardo Correa-Rotter2 and Maria Angeles Espinosa-Cuevas2,3

1Fac. de Medicina, Universidad Nacional Autónoma de México.
2Departamento de Nefrología y Metabolismo Mineral, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán.
3Departamento de Atención a la Salud, Universidad Autónoma Metropolitana-Xochimilco, México DF. México.

 

 


ABSTRACT

Background: The protein-energy wasting syndrome (PEW) is a condition of malnutrition, inflammation, anorexia and wasting of body reserves resulting from inflammatory and non-inflammatory conditions in patients with chronic kidney disease (CKD).One way of assessing PEW, extensively described in the literature, is using the Malnutrition Inflammation Score (MIS).
Objective: To assess the reliability and consistency of MIS for diagnosis of PEW in Mexican adults with CKD on hemodialysis (HD).
Methods: Study of diagnostic tests. A sample of 45 adults with CKD on HD were analyzed during the period June-July 2014.The instrument was applied on 2 occasions; the test-retest reliability was calculated using the Intraclass Correlation Coefficient (ICC); the internal consistency of the questionnaire was analyzed using Cronbach's α coefficient. A weighted Kappa test was used to estimate the validity of the instrument; the result was subsequently compared with the Bilbrey nutritional index (BNI).
Results: The reliability of the questionnaires, evaluated in the patient sample, was ICC=0.829. The agreement between MIS observations was considered adequate, κ = 0.585 (p <0.001); when comparing it with BNI, a value of κ = 0.114 was obtained (p <0.001).In order to estimate the tendency, a correlation test was performed. The r2 correlation coefficient was 0.488 (P <0.001).
Conclusion: MIS has adequate reliability and validity for diagnosing PEW in the population with chronic kidney disease on HD.

Key words: Protein energy wasting. Nutritional assessment. Dialysis. Validation. Reliability.


RESUMEN

Antecedentes: El sindrome de desgaste proteinico-energetico (DPE) se refiere a una condicion de desnutricion, inflamacion, anorexia, y emaciacion de reservas corporales resultante de las condiciones inflamatorias y no inflamatorias que prevalecen en pacientes con enfermedad renal cronica (ERC).Una forma ampliamente descrita en la literatura para evaluar el DPE es el Malnutrition Inflamation Score (MIS).
Objetivo: Valorar la fiabilidad y consistencia del MIS en adultos mexicanos con ERC en Hemodialisis (HD) para Diagnostico de DPE.
Metodos: Estudio de pruebas diagnosticas. Se analizo una muestra de 45 adultos con ERC en HD, Durante el periodo Junio-Julio 2014. El instrumento se aplico en 2 ocasiones, la fiabilidad test-retest se calculo mediante el Coeficiente de correlacion Intraclase (CCI), la consistencia interna del cuestionario se analizo mediante el Coeficiente α de Cronbach. Se calculo una prueba de Kappa ponderada para estimar la validez del instrumento, posteriormente se comparo con el indice nutricional de Bilbrey (IB).
Resultados: La fiabilidad entre cuestionarios valorada en la muestra de pacientes fue de CCI = 0.829. La concordancia entre observaciones MIS es considerada como adecuada κ = 0.585 (p<0.001), al compararlo con IB se obtuvo un valor de κ = 0.114 (p<0.001). Para conocer la tendencia se realizo una correlacion r2=0.488 (P <0.001).
Conclusion: El MIS presenta una adecuada fiabilidad y validez para diagnosticar DPE en la poblacion con enfermedad renal cronica en HD.

Palabras clave: Desgaste proteínico energético. Evaluación nutricional. Diálisis. Validación. Fiabilidad.


 

 

http://scielo.isciii.es/pdf/nh/v31n3/48originalvaloracionnutricional10.pdf

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