References
- Gasche C, Berstad A, Befrits R, Beglinger C, Dignass A, Erichsen K, et al. Guidelines on the diagnosis and management of iron deficiency and anemia in inflammatory bowel diseases. Inflamm Bowel Dis 2007;13:1545–53.
- Wilson A, Reyes E, Ofman J. Prevalence and outcomes of anemia in inflammatory bowel disease: a systematic review of the literature. Am J Med 2004;116:44S–9S.
- Bager P, Befrits R, Wikman O, Lindgren S, Moum B, Hjortswang H, et al. The prevalence of anemia and iron deficiency in IBD outpatients in Scandinavia. Scand J Gastroenterol 2011;46:304–9.
- Rejler M, Tholstrup J, Andersson-Gäre B, Spångéus A. Low prevalence of anemia in inflammatory bowel disease: A population-based study in Sweden. Scand J Gastroenterol 2012;47:937–42.
- Dallman PR, Yip R, Johnson C. Prevalence and causes of anemia in the United States, 1976 to 1980. Am J Clin Nutr 1984;39:437–45.
- Munkholm P. Crohn's disease -occurrence, course and prognosis. An epidemiologic cohort-study. Dan Med Bull 1997;44:287–302.
- Langholz E. Ulcerative colitis. An epidemiological study based on a regional inception cohort, with special reference to disease course and prognosis. Dan Med Bull 1999;46:400–15.
- Stein J, Hartmann F, Dignass AU. Diagnosis and management of iron deficiency anemia in patients with IBD. Nat Rev Gastroenterol Hepatol 2010;7:599–610.
- Kulnigg S, Teischinger L, Dejaco C, Waldhör T, Gasche C. Rapid recurrence of IBD-associated anemia and iron deficiency after intravenous iron sucrose and erythropoietin treatment. Am J Gastroenterol 2009;104:1460–7.
- Evstatiev R, Alexeeva O, Bokemeyer B, Chopey I, Felder M, Gudehus M, et al. Ferric carboxymaltose prevents recurrence of anemia in patients with inflammatory bowel disease. Clin Gastroenterol Hepatol 2013;11:269–77.
- Harvey RF, Bradshaw JM. A simple index of Crohn's-disease activity. Lancet 1980;1:514.
- Walmsley RS, Ayres RC, Pounder RE, Allan RN. A simple clinical colitis activity index. Gut 1998;43:29–32.
- WHO/UNICEF/UNU. Iron deficiency anemia: assessment, prevention and control. Report of a joint WHO/UNICEF/UNU consultation. Geneva: World Health Organization; 1998.
- Gasche C. Anemia in inflammatory bowel diseases. Bremen: UNI-MED Verlag AG; 2012:35–52.
- Kuntz KM, Weinstein MC. Modelling in economic evaluation. In Drummond M, McGuire A, editors. Economic evaluation in health care. Merging theory with pratice. Oxford: Oxford University Press; 2001:141–71.
- Ershler WB, Chen K, Reyes EB, Dubois R. Economic burden of patients with anemia in selected diseases. Value Health 2005;8:629–38.