Factors linked with survival differences between Black, White kidney failure patients

January 17, 2013, American Society of Nephrology

Complex socioeconomic and residential factors may account for differences in survival between Black and White kidney failure patients, according to a study appearing in an upcoming issue of the Journal of the American Society of Nephrology (JASN). The findings could help researchers design interventions to prolong patients' lives.

Among kidney failure patients on dialysis in the United States, Blacks tend to live longer than Whites with higher income. To investigate why, Paul Kimmel, MD (National Institutes of Diabetes and Digestive and Kidney Diseases, National Institutes of Health) and his colleagues examined links between income inequality and residence with Black and White kidney failure patients' survival.

For their study, the researchers merged US Renal Data System information on kidney failure patients starting dialysis from 2000 through 2008 with Census Bureau Black and White race-specific . The analysis included 589,036 patients. Average household income for Black and White patients was $26,742 and $41,922, respectively.

Among the major findings:

  • Residence in areas with higher average household income was linked with improved survival.
  • In White patients, was associated with mortality.
  • In Black patients exclusively, residence in highly segregated areas was associated with increased mortality.
The findings revealed that while Black kidney failure patients with lower incomes have longer survival than Whites, Blacks experience greater mortality as residential segregation increases. The results indicate that Black kidney failure patients on dialysis are particularly susceptible to both gradients in income and .

"Unknown factors such as socioeconomic issues and may affect differential survival for Black kidney failure patients," said Dr. Kimmel. "Lower access to inexpensive, nutritional foods and quality dialysis physicians and facilities, as well as living environments which are unsafe or predispose to physical inactivity could play roles and need to be evaluated." He noted that interventions directed at neighborhoods with a high proportion of Black residents might improve dialysis patient outcomes.

Explore further: Racial inequalities exist for kids with kidney disease

More information: The article, entitled "Segregation, Income Disparities and Survival in US Hemodialysis Patients," will appear online on January 17, 2013, doi: 10.1681/ASN.2012070659

Related Stories

Racial inequalities exist for kids with kidney disease

November 10, 2011
Among children with kidney disease, certain races are less likely to get kidney transplants and are more likely to die than other races, according to two studies from Emory University that were presented during the American ...

Race, insurance status related to likelihood of being assessed for kidney transplantation

July 26, 2012
Young black patients and patients without private health insurance are less likely to be assessed for a kidney transplant when they start dialysis, according to a study appearing in an upcoming issue of the Clinical Journal ...

Younger black patients undergoing dialysis have higher risk of death compared to white patients

August 9, 2011
Even though overall black patients have a lower risk of death while receiving dialysis than white patients, this applies primarily to older adults, as black patients younger than 50 years of age have a significantly higher ...

Black patients with kidney cancer have poorer survival than whites

November 12, 2012
Among patients with the most common form of kidney cancer, whites consistently have a survival advantage over blacks, regardless of patient and tumor characteristics or surgical treatment. That is the conclusion of a new ...

Recommended for you

Creation of synthetic horsepox virus could lead to more effective smallpox vaccine

January 19, 2018
UAlberta researchers created a new synthetic virus that could lead to the development of a more effective vaccine against smallpox. The discovery demonstrates how techniques based on the use of synthetic DNA can be used to ...

Study ends debate over role of steroids in treating septic shock

January 19, 2018
The results from the largest ever study of septic shock could improve treatment for critically ill patients and save health systems worldwide hundreds of millions of dollars each year.

New approach could help curtail hospitalizations due to influenza infection

January 18, 2018
More than 700,000 Americans were hospitalized due to illnesses associated with the seasonal flu during the 2014-15 flu season, according to federal estimates. A radical new approach to vaccine development at UCLA may help ...

Zika virus damages placenta, which may explain malformed babies

January 18, 2018
Though the Zika virus is widely known for a recent outbreak that caused children to be born with microencephaly, or having a small head, and other malformations, scientists have struggled to explain how the virus affects ...

Certain flu virus mutations may compensate for fitness costs of other mutations

January 18, 2018
Seasonal flu viruses continually undergo mutations that help them evade the human immune system, but some of these mutations can reduce a virus's potency. According to new research published in PLOS Pathogens, certain mutations ...

Study reveals how MRSA infection compromises lymphatic function

January 17, 2018
Infections of the skin or other soft tissues with the hard-to-treat MRSA (methicillin-resistant Staphylococcus aureus) bacteria appear to permanently compromise the lymphatic system, which is crucial to immune system function. ...

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.