LAUSR

Key Points Question Is the interaction of race and ethnicity, sex, depression, and concussion associated with risk of suicide attempts in US youth? Findings In this cohort study among 28 442 youth, a Chi-Square Automatic Interaction Detection model identified the combination of concussion history and Black, Hispanic/Latino or multiracial race and ethnicity yielded the highest risk of suicide attempt among youth with depression history. American Indian or Alaska Native, Black, or Hispanic/Latino race and ethnicity had the highest risk for reporting suicide attempt among youth without depression history. Meaning These findings suggest that clinical phenotypes of race and ethnicity, sex, depression, and concussion history were useful in understanding risk for suicide attempts in US youth.