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Population‐Based Incidence and Prevalence of Systemic Lupus Erythematosus: The Michigan Lupus Epidemiology and Surveillance Program

Arthritis & rheumatology (Hoboken, N.J.), 2014-02, Vol.66 (2), p.369-378 [Peer Reviewed Journal]

2014 The Authors. Arthritis & Rheumatology is published by Wiley Periodicals, Inc. on behalf of the American College of Rheumatology. ;Copyright © 2014 by the American College of Rheumatology ;2014 The Authors. Arthritis & Rheumatology is published by Wiley Periodicals, Inc. 2014 ;ISSN: 2326-5191 ;EISSN: 2326-5205 ;DOI: 10.1002/art.38238 ;PMID: 24504809

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  • Title:
    Population‐Based Incidence and Prevalence of Systemic Lupus Erythematosus: The Michigan Lupus Epidemiology and Surveillance Program
  • Author: Somers, Emily C. ; Marder, Wendy ; Cagnoli, Patricia ; Lewis, Emily E. ; DeGuire, Peter ; Gordon, Caroline ; Helmick, Charles G. ; Wang, Lu ; Wing, Jeffrey J. ; Dhar, J. Patricia ; Leisen, James ; Shaltis, Diane ; McCune, W. Joseph
  • Subjects: Adult ; Age Factors ; Continental Population Groups ; Epidemiological Monitoring ; Female ; Humans ; Incidence ; Lupus Erythematosus, Systemic - epidemiology ; Lupus Erythematosus, Systemic - ethnology ; Male ; Michigan - epidemiology ; Middle Aged ; Prevalence ; Retrospective Studies ; Sex Factors
  • Is Part Of: Arthritis & rheumatology (Hoboken, N.J.), 2014-02, Vol.66 (2), p.369-378
  • Description: Objective To estimate the incidence and prevalence of systemic lupus erythematosus (SLE) in a sociodemographically diverse southeastern Michigan source population of 2.4 million people. Methods SLE cases fulfilling the American College of Rheumatology classification criteria (primary case definition) or meeting rheumatologist‐judged SLE criteria (secondary definition) and residing in Wayne or Washtenaw Counties during 2002–2004 were included. Case finding was performed from 6 source types, including hospitals and private specialists. Age‐standardized rates were computed, and capture–recapture was performed to estimate underascertainment of cases. Results The overall age‐adjusted incidence and prevalence (ACR definition) per 100,000 persons were 5.5 (95% confidence interval [95% CI] 5.0–6.1) and 72.8 (95% CI 70.8–74.8). Among females, the incidence was 9.3 per 100,000 persons and the prevalence was 128.7 per 100,000 persons. Only 7 cases were estimated to have been missed by capture–recapture, adjustment for which did not materially affect the rates. SLE prevalence was 2.3‐fold higher in black persons than in white persons, and 10‐fold higher in females than in males. Among incident cases, the mean ± SD age at diagnosis was 39.3 ± 16.6 years. Black SLE patients had a higher proportion of renal disease and end‐stage renal disease (ESRD) (40.5% and 15.3%, respectively) as compared to white SLE patients (18.8% and 4.5%, respectively). Black patients with renal disease were diagnosed as having SLE at younger age than white patients with renal disease (mean ± SD 34.4 ± 14.9 years versus 41.9 ± 21.3 years; P = 0.05). Conclusion SLE prevalence was higher than has been described in most other population‐based studies and reached 1 in 537 among black female persons. There were substantial racial disparities in the burden of SLE, with black patients experiencing earlier age at diagnosis, >2‐fold increases in SLE incidence and prevalence, and increased proportions of renal disease and progression to ESRD as compared to white patients.
  • Publisher: United States: Wiley Subscription Services, Inc
  • Language: English
  • Identifier: ISSN: 2326-5191
    EISSN: 2326-5205
    DOI: 10.1002/art.38238
    PMID: 24504809
  • Source: MEDLINE
    Alma/SFX Local Collection
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