Prevalence and demographics of systemic lupus erythematosus and lupus nephritis among US children with Medicaid coverage, 2002-2004
© Hiraki et al; licensee BioMed Central Ltd. 2012
Published: 13 July 2012
Little is known about the prevalence or sociodemographics of systemic lupus erythematosus (SLE) among children on Medicaid, the government-funded program which pays for medical care for those who cannot afford it. We investigated nationwide prevalence and sociodemographic characteristics of SLE among children on Medicaid.
Children aged 5-19 years with SLE (> 2 ICD-9 codes of 710.0) were identified from Medicaid Analytic eXtract (MAX) data, containing all inpatient and outpatient claims codes for Medicaid patients for all 50 U.S. States, 2002-2004. Within this group, lupus nephritis was identified from billing codes for > 2 of a range of ICD-9 codes for glomerulonephritis, proteinuria and renal failure (PPV 88%, validated by Chibnik et al., 2009). We calculated the prevalence of SLE and lupus nephritis among Medicaid-eligible children and within specific sociodemographic segments.
Prevalence of SLE and lupus nephritis among US children aged 5-19 years, 2002-2004, (per 100,000 Medicaid-eligible children)
All ages 5-19
The prevalence of SLE among children with Medicaid medical insurance in the U.S., 2002-2004, was 17.7 per 100,000. The majority was non-white and over a third had been evidence of lupus nephritis. Future studies are required to explore predictors of outcomes of SLE in this population.
Linda T. Hiraki: None; Tamara Shaykevich: None; Wolfgang C. Winkelmayer: None; Karen H. Costenbader: None.
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