Ruhm, Christopher J. - 2014
. Trends in body mass index (BMI), overweight (BMI 25), obesity (BMI 30), class 2 obesity (BMI 35), class 3 obesity (BMI 40 …) and class 4 obesity (BMI 45) of 20-74 year olds are obtained using data from the first National Health Examination Survey …The prevalence of obesity has increased rapidly since the mid-1970s, following a period of relative stability. This …