Renal function as a predictor of outcomes in patients with hypertrophic cardiomyopathy: A cohort study of a hospitalized population

•Renal dysfunction was a common comorbidity in patients with HCM.•Renal function was an independent predictor of outcomes in patients with HCM.•Age played an interactive role in the association between renal function and death. The relationship between renal function and outcomes among patients with hypertrophic cardiomyopathy (HCM) remains undefined. We sought to investigate the prevalence of renal dysfunction and its prognostic value in HCM patients. A total of 581 patients with HCM were consecutively recruited. The chronic kidney disease epidemiology equation was used to estimate the glomerular filtration rate (eGFR). Patients were divided into 2 eGFR categories: ≥60 or