Journal
JOURNAL OF INTERNAL MEDICINE
Volume -, Issue -, Pages -Publisher
WILEY
DOI: 10.1111/joim.13702
Keywords
anemia; chronic kidney disease; iron; primary care; real-world evidence; SCREAM
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Chinese patients with chronic kidney disease (CKD) receiving primary care often face limited awareness and treatment options for managing anemia, a common complication. This study found that a significant number of patients did not receive timely treatment after developing anemia, and anemia was associated with adverse cardiovascular events and death.
BackgroundAnemia is a common complication of chronic kidney disease (CKD), but limited awareness and treatment options may hinder its management among CKD patients followed in primary care. MethodsWe evaluated adults with CKD stages 3-5 attending primary care in Stockholm, Sweden, 2012-2018. We assessed the incidence of anemia, clinical reactions, and association with subsequent major adverse cardiovascular events (MACE) and death. ResultsWe identified 45,637 patients with CKD stages 3-5 free from anemia (mean age 78 years; 64% females; 79% CKD stage 3b). During a median follow-up of 2.4 years, 26% of patients developed anemia, and 10.4% developed severe anemia (hemoglobin <10 g/dL). Within 6 months from the anemia event, iron tests were infrequent; ferritin and transferrin saturation were tested in 27% and 11% of anemia cases, respectively, and 49% and 24% of severe anemia cases. Few patients were recognized with a clinical diagnosis (15% of anemia cases; 68% of severe anemias). Only 19% of patients with anemia received treatment, primarily iron (10%) and blood transfusions (7%); erythropoietin-stimulating agent use was anecdotal (& SIM;1%). Treatment rates for severe anemia were higher, but 43% of patients still failed to receive treatment. Developing anemia was associated with a higher risk of MACE and death. ConclusionAnemia was common and associated with adverse outcomes among patients with CKD stages 3-5 managed in primary care. Iron stores were infrequently tested, and a large proportion of patients with anemia remained untreated/under-recognized.
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