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- W3000145512 abstract "Abstract Background Iron deficiency is common in inflammatory bowel disease (IBD) and can negatively affect the quality of life even in the absence of anaemia. Diagnosis of iron deficiency is based on ferritin and transferrin saturation (TfS) in routine practice, yet guideline thresholds are not evidence-based. Serum levels of soluble transferrin receptor (sTfR) are the best non-invasive test as it is not influenced by inflammation, but the test is costly with low availability. Thus, the aim of this study was to evaluate for the first time the accuracy of ferritin and/or TfS for diagnosing iron deficiency in IBD and identify the optimal thresholds of these parameters using sTfR as the gold standard. Methods Serum samples were collected from IBD patients (n = 2,072) receiving a biologic in routine practice. Diagnostic accuracy was assessed using receiver operating characteristic curves for ferritin and TfS levels separately or combined. Results No ferritin or TfS threshold had good diagnostic performance in CD patients. In UC patients with CRP <10 mg/l, optimal iron deficiency diagnostic performances were observed with ferritin and TfS thresholds of 65 µg/l and 16%, respectively. For UC patients with CRP >10 mg/l, the thresholds with the best diagnostic performance were 80 µg/l for ferritin and 11% for TfS. There was no added value for combined ferritin and TfS. Conclusion In conclusion, we found that ferritin and TfS are reliable parameters for iron deficiency diagnosis only in UC patients, at thresholds different from current guidelines. In CD patients, sTfR should be used given the poor diagnostic performance of ferritin and TfS." @default.
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- W3000145512 date "2020-01-01" @default.
- W3000145512 modified "2023-09-26" @default.
- W3000145512 title "P309 Ferritin or transferrin saturation vs. soluble transferrin receptor for iron deficiency diagnosis in inflammatory bowel disease" @default.
- W3000145512 doi "https://doi.org/10.1093/ecco-jcc/jjz203.438" @default.
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