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SPORTS MEDICINE :
PHYSICAL EXERCISE AND FITNESS :
MEDICAL: CONDITIONS: OBESITY:
Obesity Cuts Life Expectancy by Up to 14 Years, Study Shows
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Obesity Cuts Life Expectancy by Up to 14 Years, Study Shows
By Denali Tietjen
Boston.com
July 9, 2014 5:43 PM
http://www.boston.com/health/2014/07/09/obesity-cuts-life-expectancy-
years-study-shows/MPz9pzIqzZ8MIWiNavJ3EP/story.html
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A shorter URL for the above link:
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http://tinyurl.com/n2t8xhr
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Obesity is associated with several serious health conditions including
increased risk of diabetes, heart attacks, and cancer. But just how serious is
that risk? Serious enough to cut life expectancy by up to 14 years, new
research shows.
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The research, published in PLOS Medicine, analyzed data from 20 similar studies
from the National Cancer Institute. The final sample included 9,564 extremely
obese adults (100 pounds overweight) and 304,001 healthy-weight adults, making
it the largest-ever study of its kind. To eliminate other factors that could
contribute to the subjects poor health, the study excluded people with a
history of smoking and chronic disease.
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The results found that obese individuals (30 pounds overweight) have a death
rate 2.5 times that of people with a healthy weight. That translates to a loss
of 6.5 to 13.7 years of life.
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For those with extreme obesity, this statistic is even more shocking. In fact,
extreme obesity shortens life expectancy even more than smoking, the study
found. Healthy-weight smokers lost an average of 8.9 years of life while
extremely obese persons lost 9.8.
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Extreme obesity is on the rise in the United States. One in six American adults
is now extremely obese, a number that has more than quadrupled in the last 30
years.
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The complete article may be read at the URL above.
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Open Access Peer-Reviewed
Research Article
Association between Class III Obesity (BMI of 4059 kg/m2) and Mortality:
A Pooled Analysis of 20 Prospective Studies
Cari M. Kitahara mail,
Alan J. Flint,
Amy Berrington de Gonzalez,
Leslie Bernstein,
Michelle Brotzman,
Robert J. MacInnis,
Steven C. Moore,
Kim Robien,
Philip S. Rosenberg,
Pramil N. Singh,
Elisabete Weiderpass,
Hans Olov Adami,
Hoda Anton-Culver,
[ ... ],
Patricia Hartge
, [ view all ]
Background
The prevalence of class III obesity (body mass index [BMI]?40 kg/m2) has
increased dramatically in several countries and currently affects 6% of adults
in the US, with uncertain impact on the risks of illness and death. Using data
from a large pooled study, we evaluated the risk of death, overall and due to a
wide range of causes, and years of life expectancy lost associated with class
III obesity.
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snip
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What Do These Findings Mean?
These findings indicate that class III obesity is associated with a
substantially increased rate of death. Notably, this death rate increase is
similar to the increase associated with smoking among normal-weight people. The
findings also suggest that heart disease, cancer, and diabetes are responsible
for most of the excess deaths among people with class III obesity and that
having class III obesity results in major reductions in life expectancy.
Importantly, the number of years of life lost continues to increase for BMI
values above 50 kg/m2, and beyond this point, the loss of life expectancy
exceeds that associated with smoking among normal-weight people. The accuracy
of these findings is limited by the use of self-reported height and weight
measurements to calculate BMI and by the use of BMI as the sole measure of
obesity. Moreover, these findings may not be generalizable to all populations.
Nevertheless, these findings highlight the need to develop more effective
interventions to combat the growing public health problem of class III obesity.
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Source: Plos One Medicine
http://www.plosmedicine.org/article/
info%3Adoi%2F10.1371%2Fjournal.pmed.1001673
OR
http://tinyurl.com/qfqnhq5
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