Outcomes in African Americans and Hispanics with lupus nephritis

G. Contreras, O. Lenz, Victoriano Pardo, E. Borja, C. Cely, K. Iqbal, N. Nahar, C. De La Cuesta, A. Hurtado, A. Fornoni, L. Beltran-Garcia, A. Asif, L. Young, J. Diego, M. Zachariah, B. Smith-Norwood

Research output: Contribution to journalArticlepeer-review

123 Scopus citations

Abstract

Poor outcomes have been reported in African Americans and Hispanics compared to Caucasians with lupus nephritis. The purpose of this retrospective analysis was to identify independent predictors of outcomes in African Americans and Hispanics with lupus nephritis. In total, 93 African Americans, 100 Hispanics, and 20 Caucasians with a mean age of 28 ± 13 years and an annual household income of 32.9 ± 17.3 (in $1000) were studied. World Health Organization (WHO) lupus nephritis classes II, III, IV, and V were seen in 9, 13, 52, and 26%, respectively. Important baseline differences were higher mean arterial pressure (MAP) in African Americans compared to Hispanics and Caucasians (107 ± 19, 102 ± 15, and 99 ±13 mmHg, P < 0.05), and higher serum creatinine (1.66 ± 1.3, 1.25 ± 1.0, and 1.31 ± 1.0 mg/dl, P < 0.025). African Americans had lower hematocrit compared to Hispanics and Caucasians (29 ± 5, and 31 ± 6, and 32 ± 7%, P < 0.05), and lower annual household income (30.8 ± 14.9, 33.1 ± 15.9, and 42.2 ± 29.3 in $1000; P < 0.05). Lower prevalence of WHO class IV was seen in Caucasians (30%) compared to Hispanics (57%, P = 0.03) and African Americans (51%, P = 0.09). Development of doubling creatinine or end-stage renal disease was higher in African Americans and Hispanics than in Caucasians (31, 18, and 10%; P < 0.05), as was the development of renal events or death (34, 20, and 10%; P < 0.025). Our results suggest that both biological factors indicating an aggressive disease and low household income are common in African Americans and Hispanics with lupus nephritis, and outcomes in these groups are worse than in Caucasians.

Original languageEnglish (US)
Pages (from-to)1846-1851
Number of pages6
JournalKidney international
Volume69
Issue number10
DOIs
StatePublished - May 1 2006

Keywords

  • African Americans
  • Hispanics
  • Lupus nephritis

ASJC Scopus subject areas

  • Nephrology

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