Prevalence of Both Diagnosed and Undiagnosed Diabetes

Report Pages
  1. National Diabetes Statistics Report, 2017
  2. Prevalence of Both Diagnosed and Undiagnosed Diabetes
  3. Prevalence of Diagnosed Diabetes
  4. Incidence of Diagnosed Diabetes
  5. Prevalence of Prediabetes
  6. Risk Factors for Complications
  7. Coexisting Conditions and Complications
  8. Deaths and Cost
  9. Appendix
Related Pages
  • An estimated 30.3 million people of all ages—or 9.4% of the U.S. population—had diabetes in 2015 (Methods).
  • This total included 30.2 million adults aged 18 years or older (12.2% of all U.S. adults), of which 7.2 million (23.8%) were not aware of or did not report having diabetes (Table 1) (Methods).
  • The percentage of adults with diabetes increased with age, reaching a high of 25.2% among those aged 65 years or older (Table 1).
  • Compared to non-Hispanic whites, the age-adjusted prevalence of diagnosed and undiagnosed diabetes was higher among Asians, non-Hispanic blacks, and Hispanics during 2011–2014 (see Table 1a in the Appendix for more details).

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Table 1. Estimated number and percentage of diagnosed and undiagnosed diabetes among adults aged ≥18 years, United States, 2015
Characteristic Diagnosed diabetes No. in millions (95% CI)a Undiagnosed diabetes No. in millions (95% CI)a Total diabetes No. in millions (95% CI)a
Total 23.0 (21.1–25.1) 7.2 (6.0–8.6) 30.2 (27.9–32.7)
Age in years
18–44 3.0 (2.6–3.6) 1.6 (1.1–2.3) 4.6 (3.8–5.5)
45–64 10.7 (9.3–12.2) 3.6 (2.8–4.6) 14.3 (12.7–16.1)
≥65 9.9 (9.0–11.0) 2.1 (1.4–3.0) 12.0 (10.7–13.4)
Sex
Women 11.7 (10.5–13.1) 3.1 (2.4–4.1) 14.9 (13.5–16.4)
Men 11.3 (10.2–12.4) 4.0 (3.0–5.5) 15.3 (13.8–17.0)
Percentage (95% CI)b Percentage (95% CI)b Percentage (95% CI)b
Total 9.3 (8.5–10.1) 2.9 (2.4–3.5) 12.2 (11.3–13.2)
Age in years
18-44 2.6 (2.2–3.1) 1.3 (0.9–2.0) 4.0 (3.3–4.8)
45-64 12.7 (11.1–14.5) 4.3 (3.3–5.5) 17.0 (15.1–19.1)
≥65 20.8 (18.8–23.0) 4.4 (3.1–6.3) 25.2 (22.5–28.1)
Sex
Women 9.2 (8.2–10.3) 2.5 (1.9–3.2) 11.7 (10.6–12.9)
Men 9.4 (8.5–10.3) 3.4 (2.5–4.6) 12.7 (11.5–14.1)

CI = confidence interval.
a Numbers for subgroups may not add up to the total because of rounding.
b Data are crude, not age-adjusted.
Data source: 2011–2014 National Health and Nutrition Examination Survey and 2015 U.S. Census Bureau data.

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Page last reviewed: February 2, 2018
Content source: Centers for Disease Control and Prevention