Assessment of the Adherence to a Gluten-free Diet and Nutritional Status of Paediatric Patients With Coeliac Disease

Plain-language summary

Although a gluten-free diet (GFD) is essential for patients with coeliac disease (CD), many do not follow it strictly. Exposure to gluten causes villous atrophy, can deteriorate nutritional status, and can lead to deficiencies. The ESPGHAN recommends combining multiple methods to assess GFD adherence. The Celiac Dietary Adherence Test (CDAT) and measuring the gluten immunogenic peptide in urine (uGIP) or stool (sGIP) were suggested. This study aims to evaluate and compare the usefulness of an adapted CDAT, the rapid tests for detecting uGIP and sGIP, for assessing adherence to a GFD in children with CD. Additionally, we will assess these children's nutritional status. Patients, aged 2-18 years, diagnosed with CD, who have been on a GFD for at least 6 months, will be included. Clinical characteristics and anthropometric measurements will be recorded. The adapted CDAT form will be applied. A single urine and stool samples will be collected immediately, and rapid tests for the detection of GIP will be performed. The serum levels of anti-transglutaminase antibodies (IgA), albumin, ferritin, folate, vitamins B12, A, E, 25-OH vitamin D, blood count and lipid profile will be measured.

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