OBESITY AND OVERWEIGHT Obesity is a medical condition in which excess body fat has accumulated to the extent that it may have a negative effect on health leading to reduced life expectancy ID: 617930
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Slide1
OBESITY IN USASlide2
OBESITY AND OVERWEIGHT
Obesity
is a medical condition in which excess body fat has accumulated to the extent that it may have a negative effect on health, leading to reduced life expectancy and/or increased health problems.BMI is defined as the subject's weight divided by the square of their height and is calculated as follows. BMI: m h²
where
m
and
h
are the subject's weight and height respectively.Slide3
BMI (kg/m
2
)Classificationup to18.5: underweightfrom18.5 to 25.0: normal weightFrom 25.0 to 30.0: overweightFrom 30.0 to 35.0: class I obesityFrom 35.0 to 40.0: class II obesityFrom 40.0: class III obesitySlide4
USA:
the
highest obesity rates in the worldObesity rates in US are among the highest in the world.Obesity has continued to grow in USA.
Two
out of
every
three
americans
are
considered
to
be
overweight
or obese.
During
the
early
21st
century
,
America
had
the
highest
percentage
of obese people in the world.Slide5Slide6
USA and the
other
countriesUntil 1980, fewer than one in ten people were obese in OECD countries. In the following decades, rates doubled or tripled and are continuing
to
grow
.
Across the OECD, 18% of the adult population are obese. More than one in three adults in Mexico, New Zealand and the United States, and more than one in four in Australia, Canada, Chile and Hungary are obese.
In contrast, rates are just 2 to 4% of adults in Asian countries.
Rates grew rapidly in Australia, England and the United States since the 1990s, while they grew at a slower pace in other countries.Slide7
New data from ten OECD countries confirm that the obesity epidemic has not stopped spreading.
However, a slightly more positive note is that rates have been increasing at a slower pace in the past five years than previously seen.
Overweight (including obesity) rates have almost stabilised in Italy, England and the United States, and have grown modestly in Canada, Korea and Spain, in the past ten years. France is the only country where overweight rates have increased more than projected in 2010. Growth continues to be robust also in Mexico, Australia and Switzerland. Slide8Slide9
Trends in
child
obesity, age 3-17Slide10
SOURCES
OECD:
the Organisation for Economic Co-operation and Development JAMA: The Journal of the American Medical Association CDCP: the Centers for Disease Control and Prevention