<p><i>Objectives</i>: To demonstrate a study design that could be useful in low‐resource and violent urban settings and to estimate the prevalence of child violence exposure (at home, community, and school) and child mental health problems in a low‐income medium‐size city.</p> <p><i>Methods</i>: The Itaboraí Youth Study is a Norway–Brazil collaborative longitudinal study conducted in Itaboraí ...