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Fig. 3 —Plot of aortic attenuation (H) versus height (cm). Moderately
strong inverse correlation existed between aortic attenuation and body weight
(r = –0.47, p < 0.001). This indicates aortic
attenuation is reduced in taller patients. Regression formula (aortic
attenuation [H] = 882–3.3 height [cm]) indicates that, for each 10-cm
increase in height, there is decrease in enhancement of 33 H in aortic
attenuation. + = low-body mass index (BMI) group (BMI < 30), o = high-BMI
group (BMI 
30). Ninety-five percent CIs (dotted fitting lines)
are fit to regression line (solid fitting line).
