Objectives: To characterize the study population, estimating the in-hospital lethality rate by state and analysing associated factors with COVID-19-related deaths. Methods: a retrospective cohort study was carried out of hospitalised children and adolescents diagnosed with COVID-19, confirmed by RT-PCR, whose outcome was death by COVID-19 or recovery, from 2020 March 1 to August 1. The data source was the Influ...