44 Chapter 3: Weight Management • In 2019, the estimated annual medical cost of obesity was $173 billion. • From 1999 to 2020, the prevalence of obesity increased from 30.5% to 41.9%. • From 1999 to 2020, the prevalence of severe obesity increased from 4.7% to 9.2%. • In terms of ethnicity, non-Hispanic black adults had the highest prevalence of obesity (49.9%), followed by Hispanic adults (45.6%), non-Hispanic White adults (41.4%), and non-Hispanic Asian adults (16.1%). • In terms of age, adults aged 40-59 years had the highest prevalence of obesity (44.3%), followed by adults aged 60 and older (41.5%), and adults aged 20-39 years (39.8%). • In terms of socioeconomic status, adults without a high school degree or equivalent had the highest prevalence of obesity (37.8%), followed by adults with some college (35.6%) or high school graduates (35.5%), and then by college graduates (26.3%). Additionally, prevalence of obesity was lower in the lowest and highest income groups as compared with the middle-income group. Figure 3.2. illustrates the prevalence of obesity in U.S. adults by state and territory as reported by the Centers for Disease Control and Prevention (2022). Figure 3.2. Prevalence of Obesity in U.S. Adults in 2021
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