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Obesity rates vary between diverse social groups, with some racial groups and low-income individuals more likely to be obese while other minorities show lower rates. As of 2014 the rates were as low as 12% for non-Hispanic Asian women and as high as 57% among African American women. [46] [47] The incidence of obesity also varies with geography.
Given the detrimental effects and rising prevalence of childhood obesity, much research has been conducted on how to prevent and treat the condition. It appears that addressing the psychology of obesity and modifying the family environment are important factors in regaining and maintaining a healthy weight.
In science, prevalence describes a proportion (typically expressed as a percentage). For example, the prevalence of obesity among American adults in 2001 was estimated by the U. S. Centers for Disease Control (CDC) at approximately 20.9%. [5] Prevalence is a term that means being widespread and it is distinct from incidence.
The prevalence of severe obesity was higher among women at 12.7% compared to 6.7% for men. Among age groups, the prevalence of obesity was highest among adults between ages 40 and 59 at 46.4%.
Prevalence of obesity in the adult population, top countries (2016) Prevalence of obesity in the adult population in 2016. Obesity is a complex public health and policy problem because of its prevalence, costs, and health effects. [193]
The prevalence of obesity among boys from households with an income at or above 350% the poverty level was found to be 11.9%, while boys with a household income level at or above 130% of the poverty level was 21.1%. [13] The same trend followed in girls. Girls with a household income at or above 350% of the poverty level has an obesity ...
From 1980 to 2008, the prevalence of obesity in children aged 6 to 11 years tripled from 6.5% to 19.6%. The prevalence of obesity in teenagers more than tripled from 5% to 18.1% in the same time frame. [73] In less than one generation, the average weight of a child has risen by 5 kg in the United States. [74]
Overweight is defined as a BMI of 25 or more, thus it includes pre-obesity defined as a BMI between 25 and 29.9 and obesity as defined by a BMI of 30 or more. [4] [5] Pre-obese and overweight however are often used interchangeably, thus giving overweight a common definition of a BMI of between 25 and 29.9. There are, however, several other ...