November 13, 2008 — vol. 44, no 13
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U.S. diabetes rate doubles over 10 years
ATLANTA — The nation’s obesity epidemic is exacting a heavy toll: The rate of new diabetes cases nearly doubled in the United States in the past 10 years, the government said.The highest rates were in the South, according to the first state-by-state review of new diagnoses. The worst was in West Virginia, where about 13 in 1,000 adults were diagnosed with the disease in 2005-07. The lowest was in Minnesota, where the rate was 5 in 1,000.
Nationally, the rate of new cases climbed from about 5 per 1,000 in the mid-1990s to 9 per 1,000 in the middle of this decade.
Roughly 90 percent of cases are Type 2 diabetes, the form linked to obesity.
The findings released Oct. 30 dovetail with trends seen in obesity and lack of exercise — two health measures where Southern states also rank at the bottom.
“It isn’t surprising the problem is heaviest in the South — no pun intended,” agreed Matt Petersen, who oversees data and statistics for the American Diabetes Association.
The study, led by Karen Kirtland of the Centers for Disease Control and Prevention (CDC), provides an up-to-date picture of where the disease is exploding. The information should be a big help as the government and health insurance companies decide where to focus prevention campaigns, Petersen said.
Diabetes was the nation’s seventh-leading cause of death in 2006, according to the CDC. More than 23 million Americans have diabetes, and the number is rapidly growing. About 1.6 million new cases were diagnosed among adults last year.
Type 2 diabetics do not produce or use insulin, a hormone needed to convert sugar into energy. The illness can cause sugar to build up in the body, leading to complications such as heart disease, blindness, kidney failure and poor circulation that leads to foot amputations.
The study involved a random-digit-dialed survey of more than 260,000 adults. Participants were asked if they had ever been told by a doctor that they have diabetes, and when the diagnosis was made. The comparisons between 1995-97 and 2005-07 covered only the 33 states for which the CDC had complete data for both time periods.
The researchers had data for 40 states for the years 2005-07.
West Virginia, South Carolina, Alabama, Georgia, Texas and Tennessee had the highest rates, all at 11 cases per 1,000 or higher. Puerto Rico was about as high as West Virginia. Minnesota, Hawaii and Wyoming had the lowest rates, ranging from five cases per 1,000 to 6.3 cases. North Dakota’s rate was 7.2 cases.
It is not entirely clear why some states were worse than others. Older people, blacks and Hispanics tend to have higher rates of type 2 diabetes, and the South has large concentrations of all three groups. However, West Virginia is overwhelmingly white.
The report asked about diagnosed diabetes only. Because an estimated one in four diabetics have not been diagnosed, the findings probably underestimate the problem, said Angela Liese, a diabetes researcher at the University of South Carolina.
The underestimates may be particularly bad in the rural South and other areas where patients have trouble getting health care, she noted.
(Associated Press)
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