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CHICAGO | Tue Mar 1, 2011 5:18pm EST - People with diabetes in the United States and several other countries do not get effective treatment to control their disease, U.S. researchers said on Tuesday, and health insurance, not personal wealth, plays a big role in determining which diabetics get good care.

The findings suggest millions of people with diabetes are undiagnosed or poorly treated, putting them at risk of an early death from heart disease or significant complications of diabetes, such as blindness, chronic kidney disease and foot problems that can require amputations.

"Too many people are not being properly diagnosed with diabetes and related cardiovascular risk factors. Those who are diagnosed aren't being effectively treated," Dr. Stephen Lim of The Institute for Health Metrics and Evaluation at the University of Washington in Seattle said in a statement.

"This is a huge missed opportunity to lower the burden of disease in both rich and poor countries," said Lim, who worked on the study published in the Bulletin of the World Health Organization.

Diabetes is reaching epidemic levels. An estimated 280 million people, or 6.4% of the world's population, are suffering from it, according to the researchers.

Overweight people have an increased risk of developing it, and cases are predicted to rise swiftly in coming decades as obesity rates increase.

The research team used data from national health surveys to study diabetes diagnosis and treatment rates in the Colombia, England, Iran, Mexico, Scotland, Thailand and the United States and found widespread rates of undiagnosed and poorly treated diabetes.

In the United States, nearly 90% of adult diabetics - or more than 16 million adults aged 35 and older - fail to meet widely accepted targets for healthy levels of blood sugar, blood pressure and cholesterol.

In Mexico, 99% of adult diabetics are not meeting those targets.

In Thailand, up to 62% or more than 663,000 men surveyed are either undiagnosed or untreated for diabetes.

Undertreated

Of those who had been diagnosed with diabetes, many are not getting the treatment they need, the team found.

Of diabetics in all the studies, the range of those who met goals for blood sugar, blood pressure and cholesterol ranged from a low of 1 percent in Mexico to a high of 12% in the United States.

"The cost of leaving individuals with diabetes untreated in the future will be huge, and a lot of the costs could be averted by better management of the health risks of these individuals," Dr. Emmanuela Gakidou, who led the study, said in a telephone interview.

Surprisingly, personal wealth and education were not a significant factor in the rates of diagnosis and treatment in any of the countries except in Thailand.

But health insurance status played a major role.

"In countries where we had information on health insurance, it actually played a significant role in getting diagnosed and effectively treated for diabetes," Gakidou said.

The effect was the strongest in the United States, where adult diabetics who had insurance were twice as likely to be diagnosed and treated as those who had no insurance.

"That is a big effect in a country with a large population of adults with diabetes," she said.

In October, the U.S. Centers for Disease Control and Prevention projected that up to a third of U.S. adults could have diabetes by 2050 if Americans continue to gain weight and avoid exercise.

SOURCE: bit.ly/gLCpty Bulletin of the World Health Organization, online February 28, 2011.

© 2010 Thomson Reuters. Click for Restrictions.


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