Erythropoiesis-stimulating Agent Use among Patients with Lupus Nephritis Approaching End-stage Renal Disease

  • S Waikar S
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Abstract

OBJECTIVES: Little is known about erythropoiesis-stimulating agents (ESAs) utilization among lupus nephritis (LN) patients with incipient ESRD. We aimed to identify sociodemographic and clinical factors associated with ESA use among incident LN ESRD patients.<br /><br />METHODS: Among all individuals age ≥18 with incident ESRD from 1995-2008 in the U.S. Renal Data System (USRDS), we identified those with systemic lupus erythematosus (ICD-9 code 710.0) as the cause of ESRD. ESA use at ESRD onset was ascertained from the Medical Evidence Report. Year of onset, age, sex, race/ethnicity, medical insurance, employment status, residential region, clinical factors and comorbidities were considered potentially associated with ESA use in multivariable-adjusted logistic regression analyses.<br /><br />RESULTS: We identified 12,533 individuals with incident LN ESRD (1% of entire population). Of those, 4,288 (34%) received an ESA preceding ESRD. In multivariable-adjusted models, ESA users had higher serum albumin and hemoglobin concentrations, were more likely to be women, and to live in the Northeast. Conversely, Medicaid beneficiaries, the uninsured, unemployed, African Americans, Hispanics, and those with IV drug use, congestive heart failure and obesity had lower ESA use.<br /><br />CONCLUSION: Among all U.S. patients and those with LN who developed ESRD, approximately one third received ESAs. Patient sex, race, age, medical insurance, residential region and clinical factors were significantly associated with ESA therapy. While there are no guidelines for ESA use in LN patients approaching ESRD, there has been wide sociodemographic variation, raising questions about ESA prescription practices.

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APA

S Waikar, S. (2014). Erythropoiesis-stimulating Agent Use among Patients with Lupus Nephritis Approaching End-stage Renal Disease. Journal of Clinical & Cellular Immunology, 04(06). https://doi.org/10.4172/2155-9899.1000179

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