Body Mass Index

**Definition:** An indicator of body density as determined by the relationship of BODY WEIGHT to BODY HEIGHT. BMI=weight (kg)/height squared (m2). BMI correlates with body fat (ADIPOSE TISSUE). Their relationship varies with age and gender. For adults, BMI falls into these categories: below 18.5 (underweight); 18.5-24.9 (normal); 25.0-29.9 (overweight); 30.0 and above (obese). (National Center for Health Statistics, Centers for Disease Control and Prevention)

**Tree numbers:** - E01.370.600.115.100.125 - E05.041.124.125 - G07.100.100.125 - N06.850.505.200.100.175

**Synonyms:** - Quetelet's Index - Quetelet Index