Anemia in a Population-based IBD Cohort (ICURE): Still High Prevalence After 1 Year, Especially Among Pediatric Patients

作者：Sjoberg Daniel^*; Holmstrom Tommy; Larsson Marit; Nielsen Anne Lie; Holmquist Lars; Ronnblom Anders

来源：Inflammatory Bowel Diseases, 2014, 20(12): 2266-2270.

DOI：10.1097/MIB.0000000000000191

• anemia
• inflammatory bowel disease
• Crohn%26apos
• s disease
• ulcerative colitis
• epidemiology

Background:Prevalence of anemia in patients with inflammatory bowel disease (IBD) is uncertain because of scarcity of population-based studies. The aim of this study was to evaluate prevalence of anemia in a population-based cohort of newly diagnosed patients with IBD to identify risk factors for anemia and to describe contemporary anemia-specific treatment during the first year.Methods:All patients with ulcerative colitis or Crohn%26apos;s disease in the IBD Cohort of Uppsala Region cohort (n = 790) and hemoglobin levels at the time of diagnosis were eligible for inclusion. The WHO definition of anemia was used.Results:Seven hundred forty-nine (95%) of the patients with IBD were included. Five hundred eighty of 749 (77%) patients had measured hemoglobin levels at 12-month follow-up. The prevalence of anemia at the time of diagnosis was 227/749 (30%). After 1 year, it was 102/580 (18%). Anemia was more common among newly diagnosed patients with Crohn%26apos;s disease compared with ulcerative colitis (42% versus 24%, P %26lt; 0.0001), but after 1 year, there was no difference (18% versus 18%, P = NS). Children had more often anemia compared with adults, both at diagnosis and after 1 year (diagnosis: 55% versus 27%, P %26lt; 0.0001; follow-up: 28% versus 16%, P %26lt; 0.05). Anemia was associated with colonic engagement in Crohn%26apos;s disease and the extent of inflammation in ulcerative colitis. Only 46% of patients with anemia were treated with iron supplementation or blood transfusion.Conclusions:The overall prevalence of anemia in patients with IBD at the time of diagnosis was high. A large proportion was still anemic after 1 year. Children were more at risk compared with adults. More efforts are needed to treat patients with anemia.

• 出版日期2014-12