Figure 2.

Age-specific prevalence and incidence rates (with 95% confidence intervals) of systemic lupus erythematosus among female residents of New York County (Manhattan) in 2007 and during 2007–2009, respectively, according to the American College of Rheumatology case definition (met ≥4 of the 11 classification criteria), categorized by age group. Cases were assigned to 1 of 5 mutually exclusive race/ethnicity categories: non-Hispanic white, non-Hispanic black, Hispanic, non-Hispanic Asian, and non-Hispanic other. Non-Hispanic cases identified as being of >1 race were categorized as non-Hispanic other and are not shown here.