Abstract

Background: Behavioral patterns and pharmaceutical interventions in patients with attention deficit hyperactivity disorder(ADHD) might increase the risk of cardiovascular disease. Studies evaluating the differences in risk profiles and outcomes during first myocardial infarction in ADHD patients compared to the general population in the US are lacking. Methods: We performed a retrospective cohort analysis of the US National Inpatient Sample years 2005 - 2015 using appropriate ICD-9 codes to identify a weighted sample of hospitalizations for a first acute myocardial infarction (AMI) in adults. In this AMI cohort, patients with ADHD were identified. Differences in demographics, comorbidities, and outcomes were compared between patients with and without ADHD. Results: Of 4,285,185 first AMI cases, ADHD was present in 5379 (~1 in 1000). At the time of first AMI, patients with ADHD were 15 years younger (mean age 52 vs 67 years, p<.001) and were more likely to be men (72% vs 58%, p<.001) than those without. More patients with ADHD had private insurance and were in higher income categories; TABLE. Patients with ADHD had higher prevalence of substance abuse, smoking, obesity, dyslipidemia and depression whereas patients without ADHD had a higher prevalence of hypertension and diabetes mellitus. While the type of AMI was similar in both the groups, mechanical revascularization was more frequently performed in ADHD patients (69.4% vs 59.1%, p<.001). All-cause inhospital mortality during the first AMI was significantly lower in ADHD patients (1.3% vs 6.1%, p<.001). Conclusion: In the US, patients with ADHD had first AMI at a much younger age and had substantial differences in risk factor profile and outcomes compared to the general population. The influence of behavior patterns, underlying ADHD pathophysiology, and medical interventions in ADHD patients leading to the earlier AMI onset should be further explored.

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