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Table 1 Diagnostic criteria to classify overweight and obesity

From: Diagnosis, treatment and prevention of pediatric obesity: consensus position statement of the Italian Society for Pediatric Endocrinology and Diabetology and the Italian Society of Pediatrics

Age

0–2 years

2–5 years

5–18 years

Index

Weight-to-lenght ratio

BMI

BMI

Reference

WHO 2006

WHO 2006

WHO 2007

>85th percentilea

At risk of overweight

At risk of overweight

Overweight

>97th percentilea

Overweight

Overweight

Obesity

>99th percentilea

Obesity

Obesity

Severe obesity

  1. athe 85th, 97th and 99th percentiles approximate z-scores of + 1, + 2 and + 3, respectively