Figure 2

Study PRISMA. From the first 1000 HCHS subjects with CMR data, 798 subjects had undergone TTE examination, 57 were excluded due to insufficient echocardiographic or CMR image quality for measuring the aortic root. Inter and Intraobserver correlation coefficients were calculated for 50 at random selected subjects. CMR cardiac magnetic resonance imaging, ICC intra-/interclass correlation coefficient, TTE transthoracic echocardiography.