Comment on

• A multiethnic, multicenter cohort of patients with systemic lupus erythematosus (SLE) as a model for the study of ethnic disparities in SLE.

  Fernández M, Alarcón GS, Calvo-Alén J, Andrade R, McGwin G Jr, Vilá LM, Reveille JD; LUMINA Study Group. Fernández M, et al. Arthritis Rheum. 2007 May 15;57(4):576-84. doi: 10.1002/art.22672. Arthritis Rheum. 2007. PMID: 17471524
• Association of socioeconomic and demographic factors with utilization of rheumatology subspecialty care in systemic lupus erythematosus.

  Yazdany J, Gillis JZ, Trupin L, Katz P, Panopalis P, Criswell LA, Yelin E. Yazdany J, et al. Arthritis Rheum. 2007 May 15;57(4):593-600. doi: 10.1002/art.22674. Arthritis Rheum. 2007. PMID: 17471526 Free PMC article.
• Medicaid and access to care among persons with systemic lupus erythematosus.

  Gillis JZ, Yazdany J, Trupin L, Julian L, Panopalis P, Criswell LA, Katz P, Yelin E. Gillis JZ, et al. Arthritis Rheum. 2007 May 15;57(4):601-7. doi: 10.1002/art.22671. Arthritis Rheum. 2007. PMID: 17471527 Free PMC article.
• Role of age, sex, and obesity in the higher prevalence of arthritis among lower socioeconomic groups: a population-based survey.

  Busija L, Hollingsworth B, Buchbinder R, Osborne RH. Busija L, et al. Arthritis Rheum. 2007 May 15;57(4):553-61. doi: 10.1002/art.22686. Arthritis Rheum. 2007. PMID: 17471554
• Disparities in total knee replacements: a review.

  Kane RL, Wilt T, Suarez-Almazor ME, Fu SS. Kane RL, et al. Arthritis Rheum. 2007 May 15;57(4):562-7. doi: 10.1002/art.22675. Arthritis Rheum. 2007. PMID: 17471555 Review. No abstract available.
• Development of a decision aid to address racial disparities in utilization of knee replacement surgery.

  Weng HH, Kaplan RM, Boscardin WJ, Maclean CH, Lee IY, Chen W, Fitzgerald JD. Weng HH, et al. Arthritis Rheum. 2007 May 15;57(4):568-75. doi: 10.1002/art.22670. Arthritis Rheum. 2007. PMID: 17471558 Clinical Trial.