A1C Testing in the Diagnosis of Diabetes Mellitus
Published Jul 1, 2006 · Tae Joon Lee, Sarah M Safranek
American Family Physician
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Abstract
A1C testing is highly specific compared with a two-hour oral glucose tolerance test (OGTT) or a fasting plasma glucose test. However, because A1C testing is not sensitive enough to rule out diabetes if levels are normal, the test should not be used for diagnosing diabetes.
Study Snapshot
Key takeawayA1C testing is highly specific for diagnosing diabetes, but should not be used for diagnosis if levels are normal.
PopulationOlder adults (50-71 years)
Sample size24
MethodsObservational
OutcomesBody Mass Index projections
ResultsSocial networks mitigate obesity in older groups.