Translation, transcultural adaptation and validation to Brazilian Portuguese of tools for adverse drug reaction assessment in children.

Background: Children are more vulnerable to adverse drug reactions (ADRs) due to complex changes in the body during the growth process and lack specific pharmacoepidemiologic studies. Causality and Avoidability assessment of ADRs are relevant to clinical guidelines development and pharmacovigilance. This study aimed to translate and transcultural adapt two new tools-Liverpool Causality Assessment Tool (LCAT) and the Liverpool Avoidability Assessment Tool (LAAT)-to Brazilian-Portuguese and evaluate the psychometric properties of these tools to analyse ADRs in Brazilian children.