Table 1:
World Health Organization definitions of weight status for children
(14)
Age, yr
Body mass index z-score category; weight status
< −2
≥ −2 to ≤ 1
> 1 to ≤ 2
> 2 to ≤ 3
> 3
≥ 5
Underweight
Normal weight
Overweight
Obese
Severely obese
< 5
Underweight
Normal weight
At risk for overweight
Overweight
Obese