RTI International Health, Social and Economics Research and the Centers for Disease Control and Prevention compared figures that included body mass index (BMI), sick days and total medical expenditures. As BMI increased, so too did medical expenses for both men and women. The additional costs ranged from $162 for slightly obese men to an extra $1,524 for men with a BMI greater than 40. For overweight women, these costs ranged from $474 to $1,302. Per capita cost of obesity amounts to between $460 and $2,485 annually.