Table 2.

Inclusion and exclusion criteria.

Topic	Inclusion	Exclusion
Participants: Age	Participants are ≤18 years	Participants are >18 years old. Studies include those who are 18 years and under, however without disaggregated data for this age group
Participants: Workers	Participants are child labours, as defined by the study authors	Studies which do not involve work (e.g., those which are limited to environmental exposures only)
Interventions/exposures	A clearly defined chemical exposure	No specific chemical exposure
Comparisons	No criteria defined	No criteria defined
Outcomes	Health outcome directly related to occupational chemical exposure Acute or long-term outcome	Outcome not disaggregated according to exposure type
Study design	Qualitative studies Quantitative studies (intervention/case control/cohort/cross-sectional)	Grey literature
Language	English language only	Non-English language