Zhu Z, et al. - In this retrospective study of 600 consecutive patients (aged ≥75 years) with acute coronary syndrome (ACS) hospitalized between January 2013 and December 2016, researchers assessed how living without spouse influenced 1-year mortality. Patients with ACS who were living with (n=396) or without (n=204) a spouse were examined in terms of their clinical characteristics, laboratory values, hospital course, demographic characteristics, and angiographic data. Living without a spouse was identified as an independent risk factor for 1-year all-cause mortality in this patient population after adjusting for age, sex, heart rate, systolic blood pressure, left ventricular ejection fraction value at baseline, hemoglobin, white blood cell, alanine aminotransferase, albumin, creatinine, brain natriuretic peptide, type of ACS, severe heart failure at admission, percutaneous coronary intervention treatment, beta blocker, and diuretics application during hospital.