“…Previous literature has shown that diabetes mellitus, hypertension, hyperlipidemia, male sex, tobacco use, family history of atherosclerotic arterial disease (29), low socioeconomic status, stress, or negative emotions are associated with increased risk of AMI and worse outcomes after myocardial infarction (14,17,30,31), and, as summarized earlier, most of these risk factors are recognized to occur more commonly in people with severe mental disorders. Drawing on information that was available in the database, the following covariates were therefore chosen: demographic characteristics (age, sex, income, and urbanization of residence), history of cardiovascular risk factors before the occurrence of AMI (diagnoses of hypertension, diabetes, hyperlipidemia, and alcohol use disorders), history of cardiac diseases before the occurrence of AMI (heart failure, cardiogenic shock, respiratory failure, acute pulmonary edema, or any conduction disorders), and hospital properties (hospital level, geographical location, urbanization level, and teaching status, classified using methods and definitions from previous research (31) and assumed to have potential confounding effects).…”