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. Author manuscript; available in PMC: 2015 May 25.
Published in final edited form as: Ann Intern Med. 2014 Apr 15;160(8):517–525. doi: 10.7326/M13-2411

Figure 2. Prevalence of total confirmed diabetes* and obesity†, U.S. adults aged 20 years or older, NHANES 1988-1994, 1999-2004, and 2005-2010.

Figure 2

Legend:

* “Total confirmed diabetes” was defined as diagnosed diabetes or undiagnosed diabetes with diagnostic levels of both HbA1c (≥6.5%) and fasting glucose (≥126 mg/dL).

†Obesity defined as body mass index≥30 kg/m2; there were 601 people missing body mass index.

Prevalence estimates for total confirmed diabetes and obesity were obtained using only the subsample of participants who attended the morning fasting session (N=7,385 for 1988-94; 5,680 for 1999-2004; 6,719 for 2005-10).

The midpoint for obesity prevalence between 1988-94 and 1999-2004 was calculated as the average of the prevalence of the two time periods.