Access to quality healthcare is a challenge for minority and disadvantaged groups in the U.S. Systemic lupus erythematosus (lupus), a complex autoimmune disease, can cause nephritis and, in severe cases, end-stage renal disease. Lupus nephritis is a potentially preventable outcome that disproportionately afflicts vulnerable groups: women, racial and ethnic minorities, the poor, those lacking medical insurance and education, and children and the elderly. We have found that the incidence of lupus end- stage renal disease rose dramatically from 1995-2004 in the U.S., in particular among those 20-39 years old, women, and racial and ethnic minorities. More new cases now occur among Blacks than whites. The causes of these growing disparities are unknown. We hypothesize that multiple barriers to quality healthcare for lupus nephritis exist for disadvantaged patients and are responsible for premature, excess, and avoidable morbidity and mortality. Our goals are to identify and prioritize potentially remediable barriers to healthcare access for lupus nephritis and end-stage renal disease, leading to both future research and policy interventions. Our uniquely qualified interdisciplinary research team will address nationwide socio-demographic variation in lupus nephritis healthcare and the potentially modifiable factors responsible for outcome disparities. We will constitute two nationwide cohorts: one with >5000 patients with incident lupus nephritis from 2000-2004, and a second with >14,000 patients with incident lupus end-stage renal disease from 1995-2009 and investigate the factors that contribute to access to care and disparities. We have developed a conceptual model for understanding the determinants of health disparities in lupus nephritis and posit that potentially modifiable factors, such as subspecialist care, provider and medical center volume, medical insurance, and adherence to therapy, contribute to long-term outcomes in lupus nephritis, including the development of end-stage renal disease and death. Lupus patients from the affected communities will likely have great insight into our findings and should be involved in the development of strategies for overcoming observed barriers. We will perform focus groups of community lupus patients and investigate the barriers to quality healthcare for lupus nephritis and end-stage renal disease from patients'perspectives. The multidisciplinary research team will be composed of investigators with expertise in healthcare disparities research, biostatistics, pharmaco-epidemiology, administrative claims data, lupus epidemiology and quantitative research methodologies. The findings will be widely disseminated to the lupus community, physicians and healthcare workers. The results will provide guidance to clinicians and policy makers on strategies to reduce barriers and improve access to care and outcomes for all Americans with lupus nephritis.

Public Health Relevance

Lupus is an autoimmune disease that mainly afflicts disadvantaged groups in the U.S., often causing kidney failure. The reasons why some groups suffer worse outcomes are not known. We will investigate how differences in healthcare access are related to gaps in outcomes for lupus kidney disease.

Agency
National Institute of Health (NIH)
Institute
National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
Type
Research Project (R01)
Project #
5R01AR057327-05
Application #
8531652
Study Section
Special Emphasis Panel (ZRG1-RPHB-K (50))
Program Officer
Serrate-Sztein, Susana
Project Start
2009-09-15
Project End
2014-08-31
Budget Start
2013-09-01
Budget End
2014-08-31
Support Year
5
Fiscal Year
2013
Total Cost
$440,452
Indirect Cost
$193,700
Name
Brigham and Women's Hospital
Department
Type
DUNS #
030811269
City
Boston
State
MA
Country
United States
Zip Code
02115
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Barbhaiya, Medha; Costenbader, Karen H (2016) Environmental exposures and the development of systemic lupus erythematosus. Curr Opin Rheumatol 28:497-505
Feldman, Candace H; Marty, Francisco M; Winkelmayer, Wolfgang C et al. (2016) Comparative Rates of Serious Infections among Patients with Systemic Lupus Erythematosus Receiving Immunosuppressive Medications. Arthritis Rheumatol :
Barbhaiya, Medha; Lu, Bing; Sparks, Jeffrey A et al. (2016) Influence of Alcohol Consumption on the Risk of Systemic Lupus Erythematosus among Women in the Nurses' Health Study Cohorts. Arthritis Care Res (Hoboken) :
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Gómez-Puerta, Jose A; Feldman, Candace H; Alarcón, Graciela S et al. (2015) Racial and Ethnic Differences in Mortality and Cardiovascular Events Among Patients With End-Stage Renal Disease Due to Lupus Nephritis. Arthritis Care Res (Hoboken) 67:1453-62
Shilane, D; Hlatky, M A; Winkelmayer, W C et al. (2015) Coronary artery bypass graft type and outcomes in maintenance dialysis. J Cardiovasc Surg (Torino) 56:463-71
Feldman, Candace H; Hiraki, Linda T; Winkelmayer, Wolfgang C et al. (2015) Serious infections among adult Medicaid beneficiaries with systemic lupus erythematosus and lupus nephritis. Arthritis Rheumatol 67:1577-85
Feldman, Candace H; Yazdany, Jinoos; Guan, Hongshu et al. (2015) Medication Nonadherence Is Associated With Increased Subsequent Acute Care Utilization Among Medicaid Beneficiaries With Systemic Lupus Erythematosus. Arthritis Care Res (Hoboken) 67:1712-21
Yazdany, Jinoos; Feldman, Candace H; Liu, Jun et al. (2014) Quality of care for incident lupus nephritis among Medicaid beneficiaries in the United States. Arthritis Care Res (Hoboken) 66:617-24

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