Physical Activity, Health Benefits, and Mortality Risk

Table 1

Classification of body weight and obesity based on BMI and waist circumference.

	Obesity; class	BMI; (kg/m^2)	Waist; circumference	Associated; health risk
Underweight		<18.5
Normal		18.5–24.9		Average
Overweight		25.0–29.9	Men: ≥94 cm; Women: ≥80 cm	Increased
Obesity	I	30.0–34.9	Men: <102 cm; Women: <88 cm	Moderate
Moderate obesity	II	35.0–39.9		High
Severe obesity	III	≥40		Very high