Echocardiogram and electrocardiogram characteristics of study population.^a

<p><i>^a</i>For patients with a recorded echocardiogram or electrocardiogram within 48 hours of biomarker draw date. Continuous variables are presented as median (interquartile range), categorical variables as number of patients and (% of patients with available data).</p><p><i>^b</i>LV mass calculated using: Left ventricular mass (g) = 0.8 × 1.04 × [(Left ventricular end diastolic size + interventricular septal thickness + posterior wall thickness)³– left ventricular end diastolic size³] +0.6.</p><p><i>^c</i>Valvular regurgitation variables defined as follows: 0 = none, 1 = trace, 2 = mild, 3 = moderate, 4 = severe.