What is the prevalence of anemia in patients with chronic kidney disease (CKD)?

Updated: Apr 13, 2020
  • Author: Gates B Colbert, MD, FASN; Chief Editor: Emmanuel C Besa, MD  more...
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Anemia is common in patients with CKD. The landmark study by Obrador et al showed that among predialysis patients, 68% of those with advanced CKD who required renal replacement therapy had a hematocrit of less than 30%; of those, 51% had a hematocrit less than 28%. [12] Furthermore, although anemia is not as common in earlier stages of CKD, the prevalence of concurrent anemia was 5.2% in patients with stage III disease, rising to 44.1% in those with stage IV disease. [13]

The prevalence of anemia of CKD is also greater in those older than 60 years, as compared with those age 46 to 60 years (see Anemia in Elderly Persons). This is probably secondary to the greater rate of CKD in older individuals, as well as the lower estimated glomerular filtration rates (GFRs) that are associated with aging.

Black individuals have not only a 4-fold increased risk of developing CKD relative to white persons [14] but also an increased prevalence of anemia.

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