The epidemiological burden of obesity in childhood: a worldwide epidemic requiring urgent action

Table 1 Definitions of overweight and obesity in different studies

Metric	Age group	Source	Definition	Years
Overweight	Under 5 years	UNICEF, WHO, World Bank [45]	WHO Child Growth Standard	1990–2018
Obesity	2–4 years	IHME [46]	International Obesity Task Force	1980–2015
Obesity	5–19 years	NCD-RisC [47]	WHO Growth Reference	1975–2016

Abbreviations: IHME Institute for Health Metrics, NCD-RisC Non-Communicable Disease Risk Factor Collaboration, UNICEF United Nations Children’s Fund, WHO World Health Organization

ISSN: 1741-7015