Frequency and type of thromboprophylaxis use in adolescents with SCD at 48 US children’s hospitals (PHIS, 2010-2021). (A) Bar graph showing thromboprophylaxis practices of 48 children’s hospitals in hospitalized adolescent patients with SCD. (B) Bar graph showing patients included in the study by hospital. Hospitals with more than 400 patients were capped/censored at N = 400 in order to preserve anonymity.