Anaemia is common in patients with inflammatory bowel disease [IBD], its two main aetiologies being iron deficiency anaemia [IDA] and anaemia of chronic inflammation [ACI].
Among the 367 patients with anemia,191 (52%) patients had an unspecified type of anemia, 144 (39%) were diagnosed with IDA, 16 (4%) with anemia of chronic disease, and the remaining were other uncommon causes.