Bmi
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BMI
= body weight (in kg) ÷ height (in meters) squared
Underweight — BMI < 18. 5 kg/m2 Normal weight — BMI ≥ 18.5 to 24.9 kg/m2 Overweight — BMI ≥ 25.0 to 29.9 kg/m2 Class I obesity — BMI = 30.0 to 34.9 kg/m2 Class II obesity — BMI = 35.0 to 39.9 kg/m2 Class III obesity — BMI ≥ 40 kg/m2. This type of obesity is also referred to as severe, extreme, or morbid obesity.
Waist circumference The waist circumference is measured with a flexible tape placed on a horizontal plane at the level of the iliac crest as seen from the anterior view In adults with a BMI of 25 to 34.9 kg/m2, a waist circumference greater than 102 cm (40 in) for men and 88 cm (35 in) for women is associated with a greater risk of hypertension, type 2 diabetes, and dyslipidemia, and CHD In patients with a BMI ≥ 35 kg/m2, measurement of waist circumference is less helpful since it adds little to the predictive power of the disease risk classification of BMI; almost all individuals with this BMI also have an abnormal waist circumference There is ethnic variability in waist circumference values that predict increased risk. As an example, Japanese-Americans and Indians from South Asia have more total fat and visceral fat and are therefore may be at higher risk of developing type 2 diabetes for a given BMI than whites [10,17] . In Asian females a waist circumference >80 cm and in Asian male a value >90 cm are considered abnormal.
= body weight (in kg) ÷ height (in meters) squared
Underweight — BMI < 18. 5 kg/m2 Normal weight — BMI ≥ 18.5 to 24.9 kg/m2 Overweight — BMI ≥ 25.0 to 29.9 kg/m2 Class I obesity — BMI = 30.0 to 34.9 kg/m2 Class II obesity — BMI = 35.0 to 39.9 kg/m2 Class III obesity — BMI ≥ 40 kg/m2. This type of obesity is also referred to as severe, extreme, or morbid obesity.
Waist circumference The waist circumference is measured with a flexible tape placed on a horizontal plane at the level of the iliac crest as seen from the anterior view In adults with a BMI of 25 to 34.9 kg/m2, a waist circumference greater than 102 cm (40 in) for men and 88 cm (35 in) for women is associated with a greater risk of hypertension, type 2 diabetes, and dyslipidemia, and CHD In patients with a BMI ≥ 35 kg/m2, measurement of waist circumference is less helpful since it adds little to the predictive power of the disease risk classification of BMI; almost all individuals with this BMI also have an abnormal waist circumference There is ethnic variability in waist circumference values that predict increased risk. As an example, Japanese-Americans and Indians from South Asia have more total fat and visceral fat and are therefore may be at higher risk of developing type 2 diabetes for a given BMI than whites [10,17] . In Asian females a waist circumference >80 cm and in Asian male a value >90 cm are considered abnormal.
