Estimation of malnutrition prevalence in IBD patients in the community

Abstract

Materials and methods: In 699 healthy adults (436 women, 273 men) of 18 to 75 years old weight, height, body circumferences and body skinfolds measurements were obtained. Five simple noninvasive models estimating %TBF were examined, based on the mentioned measurements. Dual Xenergy Absorptiometry (DXA) was the reference method. The validity and reliability of each method was determined with Bland Altman Test and Intraclass Correlation Coefficient. Results: Mean %BF DXA was 35.2% and 22.9% for women and men respectively. Waist circumference was found to correlate with %BF DXA more than any other anthropometric measurement, both for women (r¼0.794, p<0.01) and men (r¼0.826, p<0.01). Regarding the evaluated models, % BF DEURENBERG was found to have a relative low bias (0.04%, p¼0.831 and limits of agreement¼± 10.78) and high reliability (ІCC¼0.919). Conclusions: Among the five simple noninvasive models, only the one of Deurenberg et al, was found to be valid and reliable in estimating %BF. Development of noninvasive and low cost models estimating body composition customized for Greek population is considered to be necessary. Furthermore, the results of this study suggest the use of waist circumference in such models.