Featured Research

from universities, journals, and other organizations

Large waist doubles risk of kidney disease mortality, study finds

Date:
July 15, 2011
Source:
Loyola University Health System
Summary:
For kidney disease patients, a large belt size can double the risk of dying. A new study has found that the larger a kidney patient's waist circumference, the greater the chance the patient would die during the course of the study.

For kidney disease patients, a large belt size can double the risk of dying. A study led by a Loyola University Health System researcher found that the larger a kidney patient's waist circumference, the greater the chance the patient would die during the course of the study.

Related Articles


The study by lead researcher Holly Kramer, MD, MPH, and colleagues was published in the American Journal of Kidney Diseases.

Waist circumference was more strongly linked to mortality than another common measure of obesity, body mass index (BMI).

BMI is a height-to-weight ratio. For example, if John and Mary are both the same height, but John weighs 20 pounds more, then John will have a higher BMI than Mary. But BMI can be misleading -- a muscular person with little body fat could have a BMI higher than a flabby person with little muscle mass. Waist circumference, by contrast, simply measures abdominal fat.

Researchers examined data from 5,805 adults age 45 and older who had kidney disease and participated in a study called REGARDS (Reasons for Geographic and Racial Differences in Stroke). They were followed for a median of four years and during that time 686 kidney patients (11.8 percent) died.

The average BMI of the kidney disease patients who died was 29.2. This was lower than the average BMI, 30.3, of the patients who survived. (A BMI between 25 and 29.9 is considered overweight, while a BMI of 30 and above is obese.)

By contrast, the kidney patients who died had a larger average waist circumference (40.1 inches) than the patients who survived (39.1 inches.)

Researchers compared kidney disease patients with large waists to patients who had more normal waist sizes. After adjusting for BMI and other risk factors, women with waists equal to or greater than 42.5 inches and men with waists equal to or greater than 48 inches were 2.1 times more likely to die than those with trimmer waists (less than 31.5 inches for women and less than 37 inches for men).

Researchers concluded that in adults with kidney disease, BMI by itself may not be a useful measure to determine mortality risks associated with fat. The reason is that BMI reflects several components, including muscle mass and abdominal fat.

"In contrast," the researchers conclude, "waist circumference reflects abdominal adiposity [fat] alone and may be a useful measure to determine mortality risk associated with obesity in adults with chronic kidney disease, especially when used in conjunction with BMI."

Kramer is an associate professor in the Department of Medicine, Division of Nephrology at Loyola University Chicago Stritch School of Medicine. Her co-authors are David Shoham, PhD, and Ramon Durazo-Arvizu, PhD, of the Department of Preventive Medicine and Epidemiology at Loyola University Chicago Stritch School of Medicine; Leslie McClure, PhD, George Howard, DrPH , Suzanne Judd, PhD, Paul Muntner, PhD, Monika Safford, MD, and David Warnock, MD, of the University of Alabama at Birmingham; and William McClellan, MD, MPH of Emory University.


Story Source:

The above story is based on materials provided by Loyola University Health System. Note: Materials may be edited for content and length.


Journal Reference:

  1. Holly Kramer, David Shoham, Leslie A. McClure, Ramon Durazo-Arvizu, George Howard, Suzanne Judd, Paul Muntner, Monika Safford, David G. Warnock, William McClellan. Association of Waist Circumference and Body Mass Index With All-Cause Mortality in CKD: The REGARDS (Reasons for Geographic and Racial Differences in Stroke) Study. American Journal of Kidney Diseases, 2011; DOI: 10.1053/j.ajkd.2011.02.390

Cite This Page:

Loyola University Health System. "Large waist doubles risk of kidney disease mortality, study finds." ScienceDaily. ScienceDaily, 15 July 2011. <www.sciencedaily.com/releases/2011/07/110714091942.htm>.
Loyola University Health System. (2011, July 15). Large waist doubles risk of kidney disease mortality, study finds. ScienceDaily. Retrieved October 25, 2014 from www.sciencedaily.com/releases/2011/07/110714091942.htm
Loyola University Health System. "Large waist doubles risk of kidney disease mortality, study finds." ScienceDaily. www.sciencedaily.com/releases/2011/07/110714091942.htm (accessed October 25, 2014).

Share This



More Health & Medicine News

Saturday, October 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

IKEA Desk Converts From Standing to Sitting With One Button

IKEA Desk Converts From Standing to Sitting With One Button

Buzz60 (Oct. 24, 2014) IKEA is out with a new convertible desk that can convert from a sitting desk to a standing one with just the push of a button. Jen Markham explains. Video provided by Buzz60
Powered by NewsLook.com
Ebola Protective Suits Being Made in China

Ebola Protective Suits Being Made in China

AFP (Oct. 24, 2014) A factory in China is busy making Ebola protective suits for healthcare workers and others fighting the spread of the virus. Duration: 00:38 Video provided by AFP
Powered by NewsLook.com
WHO: Millions of Ebola Vaccine Doses by 2015

WHO: Millions of Ebola Vaccine Doses by 2015

AP (Oct. 24, 2014) The World Health Organization said on Friday that millions of doses of two experimental Ebola vaccines could be ready for use in 2015 and five more experimental vaccines would start being tested in March. (Oct. 24) Video provided by AP
Powered by NewsLook.com
Doctor in NYC Quarantined With Ebola

Doctor in NYC Quarantined With Ebola

AP (Oct. 24, 2014) An emergency room doctor who recently returned to the city after treating Ebola patients in West Africa has tested positive for the virus. He's quarantined in a hospital. (Oct. 24) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins