| Inclusion criteria | Exclusion criteria |
---|---|---|
Types of study | Systematic reviews and meta-analyses | All other types of study |
Period of study | Any systematic review from 1990 to 2017 | Systematic review prior to 1990 |
Types of participants | Children as defined by < 18 years | Studies where children are not the population of interest |
Primary outcomes | Dental caries experience (as measured by any means) | Studies where dental caries is not the outcome of interest, i.e. other dental problems |
Exposure/risk factor phenomena of interest | Body weight as measured by BMI, or any means | Studies which do not look at body weight in relation to dental caries experience |
Language | Full articles in English | Relevant articles in languages other than English |