Table 1 Search terms

Overweight, obesity

MeSH terms: overweight/obesity/body mass index/Free-text terms: overweight, obesity, body mass index, BMI, body weight, waist circumference, waist hip ratio, adiposity, anthropometric

Socioeconomic position

MeSH term: Socioeconomic factors/ Free-text terms: socioeconomic factors, socioeconomic, socio-economic, socioeconomic status, socioeconomic gradient, social class, social gradient, social inequalit*, inequalit*, disparit*, disadvantage*, poverty, income, employment status, education* status, educational attainment, deprivation, health inequalit*

Childhood

MeSH terms: child/child, preschool/adolescent/ Free text terms: child*, adolesc*, school

OECD countries

MeSH term: developed countries/MeSH exp & Free-text for each OECD member country (America, Australia, Austria, Belgium, Canada, Chile, Czech Republic, Denmark, England, Estonia, Finland, France, Germany, Great Britain, Greece, Hungary, Iceland, Ireland, Israel, Italy, Japan, Korea, Luxembourg, Mexico, Netherlands, new Zealand, Norway, Poland, Portugal, Slovak Republic, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey, United Kingdom, United States)

OECD, Organisation for Economic Co-operation and Development.