What are Statements that true about body mass index?

The following statements about body mass index (BMI) are true:

1. BMI is a measure of body fat based on height and weight. It is calculated by dividing a person's weight in kilograms by the square of their height in meters.

2. BMI is used to categorize individuals into different weight status groups. These groups include underweight, normal weight, overweight, and obese.

3. BMI is a simple and inexpensive screening tool for obesity. It can be easily calculated using a person's height and weight.

4. BMI is not a perfect measure of body fat. It may not accurately reflect body fatness in certain individuals, such as those with a lot of muscle mass or those who are very short.

5. BMI is most useful when used in conjunction with other measures of health, such as waist circumference and blood pressure.