Mortality and Cardiovascular Outcomes in Patients Presenting With Non-ST Elevation Myocardial Infarction Despite No Standard Modifiable Risk Factors : Results From the SWEDEHEART Registry

Background A significant proportion of patients with ST‐segment–elevation myocardial infarction (MI) have no standard modifiable cardiovascular risk factors (SMuRFs) and have unexpected worse 30‐day outcomes compared with those with SMuRFs. The aim of this article is to examine outcomes of patients with non–ST‐segment–elevation MI in the absence of SMuRFs. Methods and Results Presenting features, management, and outcomes of patients with non–ST‐segment–elevation MI without SmuRFs (hypertension, diabetes, hypercholesterolemia, smoking) were compared with those with SmuRFs in the Swedish MI registry SWEDEHEART (Swedish Web‐System for Enhancement and Development of Evidence‐Based Care in Heart Disease Evaluated According to Recommended Therapies; 2005–2018). Cox proportional hazard models were used. Out of 99 718 patients with non–ST‐segment–elevation MI, 11 131 (11.2%) had no SMuRFs. Patients without SMuRFs had higher all‐cause and cardiovascular mortality at 30 days (hazard ratio [HR], 1.20 [95% CI, 1.10–1.30], P P for all Conclusions One in 10 patients presenting with non–ST‐segment–elevation MI present without traditional risk factors. The excess 30‐day mortality rate in this group emphasizes the need for both improved population‐based strategies for prevention of MI, as well as the need for equitable evidence‐based treatment at the time of an MI.