Background: Racial and ethnic disparities exist in postacute myocardial infarction (AMI) care. High-potency P2Y12 inhibitors use among patients with AMI who undergo percutaneous coronary intervention (PCI) carries a class I indication in the guidelines. This study aims to examine racial and ethnic differences in high-potency P2Y12 inhibitor prescription on discharge among patients with AMI undergoing PCI.
Methods: Using data from the NCDR Cath PCI registry, we identified consecutive patients with AMI who underwent PCI from April 2018 to June 2023. Likelihood of high-potency P2Y12 inhibitor prescription on discharge was assessed using logistic regression models adjusted for social deprivation index and other patient- and procedure-related variables.
Results: Among 1 662 387 patients hospitalized with AMI and who underwent PCI, 165 579 (9.9%) were Black, 58 595 (3.5%) were Asian, and 1 302 576 (78.3%) were of White race, while 135 637 (8.1%) were of Hispanic ethnicity. At discharge 876 078 (52.7%) were prescribed a high-potency P2Y12 inhibitor. Compared with White patients, Black patients were less likely (adjusted odds ratio, 0.93 [95% CI, 0.92-0.94]), while Asians were more likely (adjusted odds ratio, 1.08 [1.07-1.10]) to have a high-potency P2Y12 inhibitor discharge prescription. Compared with non-Hispanics, Hispanic patients were less likely to have a high-potency P2Y12 inhibitor discharge prescription (adjusted odds ratio, 0.95 [95% CI, 0.93-0.96).
Conclusions: In a contemporary national registry of hospitalized patients with AMI who underwent PCI, Black and Hispanic patients were less likely to be discharged on a high-potency P2Y12 inhibitor irrespective of socioeconomic status. These findings highlight an opportunity to achieve equity in guideline-directed AMI pharmacotherapies to improve outcomes.
Keywords: ethnicity; myocardial infarction; percutaneous coronary intervention.