Michelle Housey1, Peter DeGuire, Sarah Lyon-Callo, Lu Wang, Wendy Marder, W Joseph McCune, Charles G Helmick, Caroline Gordon, J Patricia Dhar, James Leisen, Emily C Somers. 1. Michelle Housey, Peter DeGuire, and Sarah Lyon-Callo are with the Michigan Department of Community Health, Lansing. Lu Wang is with the Department of Biostatistics, University of Michigan, Ann Arbor. Wendy Marder, W. Joseph McCune, and Emily C. Somers are with the Department of Internal Medicine, University of Michigan, Ann Arbor. Charles G. Helmick is with the Centers for Disease Control and Prevention, Atlanta, GA. Caroline Gordon is with the University of Birmingham, Birmingham, UK. J. Patricia Dhar is with the Central Michigan University College of Medicine, Mount Pleasant. James Leisen is with the Henry Ford Health System, Division of Rheumatology, Detroit, MI.
Abstract
OBJECTIVES: We assessed the burden of systemic lupus erythematosus (SLE) among Arab and Chaldean Americans residing in southeast Michigan. METHODS: For those meeting SLE criteria from the Michigan Lupus Epidemiology and Surveillance Registry, we determined Arab or Chaldean ethnicity by links with demographic data from birth certificates and with a database of Arab and Chaldean names. We compared prevalence and incidence of SLE for Arab and Chaldean Americans with estimates for non-Arab and non-Chaldean American Whites and Blacks. RESULTS: We classified 54 individuals with SLE as Arab and Chaldean Americans. The age-adjusted incidence and prevalence estimates for Arab and Chaldean Americans were 7.6 and 62.6 per 100 000, respectively. Arab and Chaldean Americans had a 2.1-fold excess SLE incidence compared with non-Arab and non-Chaldean American Whites. Arab and Chaldean American women had both significantly higher incidence rates (5.0-fold increase) and prevalence estimates (7.4-fold increase) than did Arab and Chaldean American men. CONCLUSIONS: Recognizing that Arab and Chaldean Americans experience different disease burdens from Whites is a first step toward earlier diagnosis and designing targeted interventions. Better methods of assigning ethnicity would improve research in this population.
OBJECTIVES: We assessed the burden of systemic lupus erythematosus (SLE) among Arab and Chaldean Americans residing in southeast Michigan. METHODS: For those meeting SLE criteria from the Michigan Lupus Epidemiology and Surveillance Registry, we determined Arab or Chaldean ethnicity by links with demographic data from birth certificates and with a database of Arab and Chaldean names. We compared prevalence and incidence of SLE for Arab and Chaldean Americans with estimates for non-Arab and non-Chaldean American Whites and Blacks. RESULTS: We classified 54 individuals with SLE as Arab and Chaldean Americans. The age-adjusted incidence and prevalence estimates for Arab and Chaldean Americans were 7.6 and 62.6 per 100 000, respectively. Arab and Chaldean Americans had a 2.1-fold excess SLE incidence compared with non-Arab and non-Chaldean American Whites. Arab and Chaldean American women had both significantly higher incidence rates (5.0-fold increase) and prevalence estimates (7.4-fold increase) than did Arab and Chaldean American men. CONCLUSIONS: Recognizing that Arab and Chaldean Americans experience different disease burdens from Whites is a first step toward earlier diagnosis and designing targeted interventions. Better methods of assigning ethnicity would improve research in this population.
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