Johns Hopkins Diabetes GuideOverview

Epidemiology of Type 2 Diabetes

Nestoras Mathioudakis, M.D., Rita Rastogi Kalyani, M.D., M.H.S.
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Prevalence of type 2 diabetes in the U.S.

  • Approximately 25.8 million people (18.8 million diagnosed, 7.0 million undiagnosed) have diabetes, or 8.3% of the U.S. population with diagnosed diabetes in 2011
  • Approximately 79 million adults aged 20 years or older have prediabetes based on fasting glucose or hemoglobin A1c levels
  • About 1.9 million U.S. adults aged 20 years or older were newly diagnosed with type 1 or type 2 diabetes in 2010
  • One-third of elderly have diabetes; three-quarters have diabetes or pre-diabetes.
  • Compared with non-Hispanic whites, age- and sex-standardized prevalence of diagnosed diabetes was twice as high as in non-Hispanic blacks and Mexican Americans.
  • Comparatively, crude prevalence of diagnosed diabetes in adults ≥ 20 years continues to increase from 5.1% in 1988-1994 to 7.7% in 2005-2006 to present day.
  • Information above from [14] [3]

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Last updated: August 2, 2015