Malnutrition in women with rheumatoid arthritis is not revealed by clinical anthropometrical measurements or nutritional evaluation tools

Autor: Ingiäld Hafström, Tommy Cederholm, Ann-Charlotte Elkan, Inga-Lill Engvall, Birgitta Tengstrand
Rok vydání: 2007
Předmět:
Zdroj: European Journal of Clinical Nutrition. 62:1239-1247
ISSN: 1476-5640
0954-3007
DOI: 10.1038/sj.ejcn.1602845
Popis: To evaluate diagnostic instruments for assessment of nutritional status in patients with rheumatoid arthritis (RA) in relation to objective body composition data.Study subjects include 60 in-ward patients (83% women, median age 65 years). Anthropometric measures and the nutritional tools Mini Nutritional Assessment (MNA), Subjective Global Assessment (SGA), Malnutrition Universal Screening Tool (MUST) and Nutritional Risk Screening tool 2002 (NRS-2002). Body composition was determined by dual-energy X-ray absorptiometry and fat-free mass index (FFMI; kg/m(2)) and fat mass index (FMI; kg/m(2)) were calculated.Mean body mass index (BMI) for RA women and men were 24.4 and 26.9 kg/m(2), respectively. Twelve per cent of the women and none of the few men had BMI18.5 kg/m(2), that is, the cutoff value for malnutrition. FFMI indicated 52% of the women and 30% of the men to be malnourished. The sensitivity and specificity for BMI to detect malnutrition according to FFMI were 27 and 100%, whereas for arm muscle circumference the sensitivity was 36% and the specificity 89% and for triceps skin fold 43 and 93%, respectively. For MNA, sensitivity was 85% and specificity 39% and for SGA 46 and 82%. Both MUST and NRS-2002 had sensitivity of 45% and specificity of 19%.A large proportion of in-ward RA patients had reduced FFMI. Concurrent elevation of fat mass made BMI a non-reliable tool to detect malnutrition. Of the tested clinical evaluation tools, MNA might be used as a screening instrument, but because of its low specificity it should be followed by body composition determination.
Databáze: OpenAIRE