Table 1.

Obesity and overweight diagnostic criteria in children.

	Age
	0–2 years	2–5 years	5–18 years
Index	Weight-to-lenght ratio	Body mass index	Body mass index
Reference	WHO 2006	WHO 2006	WHO 2007
>85th percentile *	Overweight risk	Overweight risk	Overweight
>97th percentile *	Overweight	Overweight	Obesity
>99th percentile *	Obesity	Obesity	Severe obesity

* The 85th, 97th, and 99th percentiles’ approximate z-scores of +1, +2, and +3, respectively. WHO—World Health Organization.