When a person has prediabetes, their blood sugar levels are higher than normal but not high enough for a diabetes diagnosis. Prediabetes can increase a person’s risk of developing type 2 diabetes, heart disease, and stroke. CDC estimates that 88 million, or 1 in 3, US adults aged 18 years or older had prediabetes in 2018. This number includes about 35 million adults aged 45 to 64 years and 24 million aged 65 years or older.
Although an estimated one-third of US adults had prediabetes in 2018, only 15.3% were aware of it. Trends in the prevalence of prediabetes among US adults remained constant from 2005 to 2016. However, the percentage with prediabetes who had ever been told by a health care professional that they had prediabetes (awareness) has doubled (Figure 6).12 Table 2 shows the percentage of US adults by state or US territory who said they had ever been told by a health care professional that they had prediabetes.
Figure 6. Trends in Age-Adjusted Prevalence and Awareness of Prediabetes Among US Adults Aged 18 Years or Older, 2005–2016
|State or Territory||Percentage|
|District of Columbia||10.8|
|US Virgin Islands||10.8|
Note: Percentages are age-adjusted to the 2000 US standard population.
Data sources: CDC’s United States Diabetes Surveillance System and Behavioral Risk Factor Surveillance System.
a State median calculated with 2016 data only.
b Data from 16 states are from 2014 because 2015 and 2016 data were not available.
c Data from 4 states are from 2013 because 2014, 2015, and 2016 data were not available.
d Data from 3 states are from 2015 because 2016 data were not available.