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Chronic kidney disease a warning sign independent of hypertension or diabetes

Date:
September 25, 2012
Source:
Johns Hopkins Bloomberg School of Public Health
Summary:
New research finds the presence of chronic kidney disease itself can be a strong indicator of the risk of death and end-stage renal disease (ESRD) even in patients without hypertension or diabetes.

Two new studies from the Johns Hopkins Bloomberg School of Public Health and the Chronic Kidney Disease Prognosis Consortium found that the presence of chronic kidney disease itself can be a strong indicator of the risk of death and end-stage renal disease (ESRD) even in patients without hypertension or diabetes. Both hypertension and diabetes are common conditions with chronic kidney disease with hypertension being the most prevalent.

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The studies were released online in advance of publication in The Lancet.

Chronic kidney disease affects 10 to 16 percent of all adults in Asia, Europe, Australia and the United States. Kidney function is measured by estimating glomerular filtration rate and kidney damage is often quantified by measuring albumin, the major protein in the urine standardized for urine concentration.

In the hypertension meta-analysis, low kidney function and high urine protein was associated with all-cause and cardiovascular mortality and ESRD in both individuals with and without hypertension. The associations of kidney function and urine protein with mortality outcomes were stronger in individuals without hypertension than in those with hypertension, whereas the kidney function and urine protein associations with ESRD did not differ by hypertensive status.

In the diabetes analysis, individuals with diabetes had a higher risk of all-cause, cardiovascular mortality and ESRD compared to those without diabetes across the range of kidney function and urine protein. Despite their higher risks, the relative risks of these outcomes by kidney function and urine protein are much the same irrespective of the presence or absence of diabetes.

"Chronic kidney disease should be regarded as at least an equally relevant risk factor for mortality and ESRD in individuals without hypertension as it is in those with hypertension," said Bakhtawar K. Mahmoodi, MD, PhD, lead author of the hypertension analyses.

"These data provide support for clinical practice guidelines which stage chronic kidney disease based on kidney function and urine protein across all causes of kidney disease. The conclusions are strengthened by the findings of leading studies and the participation of investigators from 40, countries and a detailed analysis of over 1 million participants," said Josef Coresh, MD, PhD, MHS, the Consortium's principal investigator and professor in the Bloomberg School's Department of Epidemiology.

"Association of kidney disease measures with mortality and end-stage renal disease in individuals with and without hypertension: a meta-analysis" (lead author, Bakhtawar K. Mahmoodi, MD, PhD, from the Johns Hopkins Bloomberg School of Public Health and University Medical Center Groningen, the Netherlands) and "Association of kidney disease measures with mortality and end-stage renal disease in individuals with and without diabetes: a meta-analysis" (lead author Caroline Fox, MD, from the Framingham Heart Study) were written by the Chronic Kidney Disease Prognosis Consortium (CKD-PC), which includes approximately 200 collaborators and data from 40 countries.

The US National Kidney Foundation and a variety of sources such as national institutes of health and medical research councils as well as foundations and industry sponsors supporting the authors and collaborating cohorts of the CKD-PC.


Story Source:

The above story is based on materials provided by Johns Hopkins Bloomberg School of Public Health. Note: Materials may be edited for content and length.


Journal References:

  1. Bakhtawar K Mahmoodi, Kunihiro Matsushita, Mark Woodward, Peter J Blankestijn, Massimo Cirillo, Takayoshi Ohkubo, Peter Rossing, Mark J Sarnak, Bιnιdicte Stengel, Kazumasa Yamagishi, Kentaro Yamashita, Luxia Zhang, Josef Coresh, Paul E de Jong, Brad C Astor. Associations of kidney disease measures with mortality and end-stage renal disease in individuals with and without hypertension: a meta-analysis. The Lancet, 2012; DOI: 10.1016/S0140-6736(12)61272-0
  2. Caroline S Fox, Kunihiro Matsushita, Mark Woodward, Henk JG Bilo, John Chalmers, Hiddo J Lambers Heerspink, Brian J Lee, Robert M Perkins, Peter Rossing, Toshimi Sairenchi, Marcello Tonelli, Joseph A Vassalotti, Kazumasa Yamagishi, Josef Coresh, Paul E de Jong, Chi-Pang Wen, Robert G Nelson. Associations of kidney disease measures with mortality and end-stage renal disease in individuals with and without diabetes: a meta-analysis. The Lancet, 2012; DOI: 10.1016/S0140-6736(12)61350-6

Cite This Page:

Johns Hopkins Bloomberg School of Public Health. "Chronic kidney disease a warning sign independent of hypertension or diabetes." ScienceDaily. ScienceDaily, 25 September 2012. <www.sciencedaily.com/releases/2012/09/120925171224.htm>.
Johns Hopkins Bloomberg School of Public Health. (2012, September 25). Chronic kidney disease a warning sign independent of hypertension or diabetes. ScienceDaily. Retrieved November 24, 2014 from www.sciencedaily.com/releases/2012/09/120925171224.htm
Johns Hopkins Bloomberg School of Public Health. "Chronic kidney disease a warning sign independent of hypertension or diabetes." ScienceDaily. www.sciencedaily.com/releases/2012/09/120925171224.htm (accessed November 24, 2014).

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