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Methods| Through partnerships with 14 state departments of public health, we collected data from 2015 through 2020 for 85 102 decedents with suicide as the cause of death. MIT COUHES approved the conduct of this research and waived ethical review and the informed consent requirement because the study was not human participant research and used death certificates from deceased individuals. To assess pandemic-period changes in suicide, we first compared counts of suicides between the prepandemic (2015-2019) and pandemic (2020) periods. Counts were collated for adolescents aged 10 to 19 years3 and across all ages (overall). We then computed the yearly proportion of overall suicides among adolescents to examine how the burden of suicide has shifted across age groups throughout the pandemic. To measure the change in adolescent suicidality between the prepandemic and pandemic periods …