Fig. 1From: Socioeconomic factors and self-reported health outcomes in African Americans with rheumatoid arthritis from the Southeastern United States: the contribution of childhood socioeconomic statusFlow chart of CLEAR1 II participants included in this study. 1 Consortium for the Evaluation of African-Americans with Rheumatoid Arthritis (RA). 2 Covariates include age, gender, BMI, disease duration, cigarette smoking, methotrexate use and biologic agent useBack to article page