NEW ORLEANS - One in three U.S. children born in 2000 will become
diabetic unless many more people start eating less and exercising more, a
scientist with the Centers for Disease Control and Prevention warns.
The odds are worse for black and Hispanic children: nearly half of them
are likely to develop the disease, said Dr. K.M. Venkat Narayan, a
diabetes epidemiologist at the CDC.
"I think the fact that the diabetes epidemic has been raging has been
well known to us for several years. But looking at the risk in these terms
was very shocking to us," Narayan said.
The 33 percent lifetime risk is about triple the American Diabetes
Association's current estimate.
The implications are frightening. Diabetes leads to a host of problems,
including blindness, kidney failure, amputation and heart disease, and
diabetics are getting younger and younger.
Including undiagnosed cases, authorities believe about 17 million
Americans, nearly 6 percent of the U.S. population, have diabetes
If the CDC predictions are accurate, some 45 million to 50 million U.S.
residents could have diabetes by 2050, said Dr. Kevin McKinney, director
of the adult clinical endocrinological unit at the University of Texas
Medical Center in Galveston.
"There is no way that the medical community could keep up with that,"
McKinney, who was not part of the study, said Narayan's procedures are
valid and the estimates, being presented Saturday to the American Diabetes
Association, are probably all too likely.
Diabetes, a disease caused largely by obesity and lack of exercise, has
been an increasing worry for decades. From the mid-1960s to the mid-'90s,
the number of cases tripled.
The number of diagnosed cases rose by nearly half in just the past 10
years, hitting 11 million in 2000, and is expected to rise an additional
165 percent by 2050, to 29 million, an earlier CDC study by Narayan and
"These estimates I am giving you now are probably quite conservative,"
Narayan said in an interview before the diabetes association's annual
scientific meeting here.
Narayan said it would be difficult to say whether undiagnosed cases
would rise at the same rate. If they did, that could push the 2050 figure
to 40 million or more.
Doctors had known for some time that Type 2 diabetes - what used to be
called adult-onset diabetes because it typically showed up in middle-aged
people - is on the rise, and that patients are getting younger.
Nobody else had crunched the numbers to look at current odds of getting
the disease, Narayan said.
Overall, he said, 39 percent of the girls who now are healthy 2 1/2- to
3-year-olds and 33 percent of the boys are likely to develop diabetes, he
For Hispanic children, the odds are closer to one in two: 53 percent of
the girls and 45 percent of the boys. The numbers are about 49 percent and
40 percent for black girls and boys, and 31 percent and 27 percent for
white girls and boys.
To reach his estimates, Narayan used data from the annual National
Health Interview Survey of about 360,000 people from 1984-2000, from the
U.S. Census Bureau and from a previous study of diabetes as a cause of
Globally, the World Health Organization has estimated that by 2025, the
number of people with diabetes worldwide will more than double, from 140
million to 300 million.
"They estimated that by 2025, there would be close to 60 million people
with diabetes in India alone. That's about the size of Great Britain or
France," Narayan said.
It doesn't have to happen.
Type 2 diabetes can be prevented or delayed by losing weight,
exercising and following a sensible diet.
A study two years ago found that walking 30 minutes a day most days of
the week and losing a little weight helped the people most likely to get
it cut their risk 58 percent.
The U.S. Department of Health and Human Services used that information
last fall in its "Small Steps, Big Rewards" campaign against