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Home NEWS Science News Science

Kidney disease hospitalization and mortality rates continue to decline in the US

Bioengineer by Bioengineer
December 2, 2016
in Science
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ANN ARBOR, Mich. – According to an annual data report from the United States Renal Data System (USRDS), hospitalization and mortality rates for patients with chronic kidney disease continue to decline in the U.S.

Along with those rates, the report highlights several current trends in kidney disease in the U.S., including Medicare spending in the patient population and number of kidney transplants.

This year's report provides data from 2014 and is released by the USRDS coordinating center based at the University of Michigan Kidney Epidemiology and Cost Center, in partnership with Arbor Research Collaborative for Health.

The report states that hospitalization rates among end-stage kidney disease patients decreased to 1.7 admissions per patient per year, as compared to 2.1 in 2005, or a reduction of 19 percent. End-stage kidney disease is the last stage of chronic kidney disease when the kidneys can no longer remove waste and excess water from the body, and dialysis or kidney transplantation is necessary for survival.

In addition, mortality rates continue to decrease for dialysis and transplant patients, falling by 32 percent and 44 percent, respectively, since 1996.

"Most recent estimates indicate 14.8 percent of U.S. adults have chronic kidney disease," says Rajiv Saran, M.D., professor of internal medicine at the University of Michigan and director of the USRDS coordinating center. "Fortunately, we've seen steeper declines in mortality rates in more recent years in this patient population, which is promising."

Other highlights from the report include:

  • There were 120,688 newly reported cases of end-stage kidney disease, representing a slight increase of 1.1 percent compared to 2013. At the end of 2014, there were 678,383 dialysis and transplant patients receiving treatment for end-stage kidney disease, up 3.5 percent from 2013.
  • Among all patients who currently receive hemodialysis, use of an arteriovenous fistula–a surgically-created vein used to remove and return blood during dialysis– has increased from 32 percent to 63 percent since 2003. Dialysis catheter use has declined from 27 percent to 18 percent during this same time period.
  • Medicare spending for beneficiaries ages 65 and older who have chronic kidney disease exceeded $50 billion, representing 20 percent of all Medicare spending in this age group. Total Medicare fee-for-service spending in the general Medicare population increased by 3.8 percent in 2014 to $435.6 billion, with $32.8 billion, or 7.2 percent, of that overall spending accounting for end-stage kidney disease patients. Compared to 2013, the costs of Part D claims and skilled nursing facility care in 2014 grew at the fastest rates of 21 percent and 5.5. percent, respectively.
  • Prior to 2013, Medicare spending on hospice care in end-stage kidney disease patients had been experiencing one of the highest rates of growth of any category of Medicare spending, but the spending declined by 6.3 percent in 2014.
  • As of December 31, 2014, the kidney transplant waiting list increased by 3 percent over the previous year to 88,231 candidates, of which 83 percent were awaiting their first kidney transplant. With less than 18,000 kidney transplants performed in 2014, the active waiting list was 2.8 times larger than the supply of donor kidneys.

"An interesting note on kidney transplants is a relatively recent initiative called kidney paired donation," Saran says. "The initiative is aimed at increasing the availability of living donor transplants, and in its simplest form is essentially when two living donors do not match with the respective recipients and decide to perform an exchange whereby the donation goes to each other's compatible recipient. Kidney paired donation transplants have risen sharply in recent years with 552 performed in 2014, representing 10 percent of living donor transplants that year."

According to Saran, earlier diagnosis and treatment of chronic kidney disease can improve patient outcomes.

"As newly reported cases of end-stage kidney disease continue to happen each year, physicians and patients need to have continued dialogue about the disease and how best to manage it," Saran says. "We hope this report provides fellow clinicians and researchers with valuable information they can use when discussing the disease with their patients and colleagues."

###

Authors: In addition to Saran, the report's U-M authors include Bruce Robinson, M.D., Vahakn Shahinian, M.D., John Ayanian, M.D., Jennifer Bragg-Gresham, Ph.D., Debbie Gipson, M.D., Yun Han, M.S., Kevin He, Ph.D., William Herman, M.D., Michael Heung, M.D., Richard A. Hirth, Ph.D., David Hutton, Ph.D., Yi Li, Ph.D., Yee Lu, M.D., Hal Morgenstern, Ph.D., Brahmajee Nallamothu, M.D., Brett Plattner, M.D., Ronald Pisoni, Ph.D., Panduranga Rao, M.D., Douglas E. Schaubel, Ph.D., David T. Selewski, M.D., Peter Song, Ph.D., and Kenneth J. Woodside, M.D.

Funding: Funding for the project came from the National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, and the U.S. Department of Health and Human Services, under contract HHSN276201400001C, and the USRDS Coordinating Center Team, which consists of investigators and staff from the University of Michigan Health System, the Kidney Epidemiology and Cost Center, in partnership with Arbor Research Collaborative for Health.

Disclosures: Dr. Hal Morgenstern is a consultant at Arbor Research Collaborative for Health. Dr. Jennifer Bragg-Gresham is a consultant with IMPAQ, and with Medical Education Institute (MEI) involving quality of life performance measures.

Reference: United States Renal Data System. 2016 USRDS annual data report: Epidemiology of kidney disease in the United States. National Institutes of Health. National Institute of Diabetes and Digestive and Kidney Disease, Bethesda, MD, 2016. http://www.usrds.org/adr.aspx.

Media Contact

Kylie O'Brien
[email protected]
734-764-2220
@UMHealthSystem

http://www.med.umich.edu

############

Story Source: Materials provided by Scienmag

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