
Screening For Diabetes Is Working Better Than Thought
Screening for Type 2 diabetes involves a blood test, and if results are concerning a second test is recommended. ERproductions Ltd/Blend Images/Getty Images hide caption
ERproductions Ltd/Blend Images/Getty Images
Screening for Type 2 diabetes involves a blood test, and if results are concerning a second test is recommended.
ERproductions Ltd/Blend Images/Getty Images
Undiagnosed diabetes may not be as big of a public health problem as thought.
That's the takeaway from a study published Monday in the Annals of Internal Medicine that says that some previous efforts have likely overestimated the number of people with undiagnosed diabetes because they relied on a single positive test result.
By contrast, this new measure used the American Diabetes Association's diagnostic criteria , which recommend that people with one positive fasting blood glucose or A1C test should have a second test to confirm a diagnosis in all but the most severe and obvious cases of Type 2 diabetes. That's because there's some inherent variability in the tests and because blood sugar levels fluctuate naturally because of exercise, illness and even the time of day.
If left untreated, Type 2 diabetes can contribute to kidney disease, nerve damage, high blood pressure and stroke.
The Centers for Disease Control and Prevention has applied the less stringent standard to data from the National Health and Nutrition Examination Survey and the U.S. Census to come up with an estimate of 33.3 million people with diabetes in 2015, 7.2 million of whom, or almost 24 percent, were undiagnosed. When researche
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