Left Atrial Strain, Amy-Lyon, and Columbia Scores to Predict Atrial Fibrillation in Cardiac Amyloidosis

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  Figure 1. Incidence of Atrial Fibrillation Upper panel: probability of incident atrial fibrillation according to quartiles of Columbia score Lower panel: probability of incident atrial fibrillation according to quartiles of Amy-Lyon AF score Quartiles of Columbia score: 1 to 2, first quartile; 3, second quartile; 4 to 5, third quartile; 6 to 9, fourth quartile. Quartiles of Amy-Lyon AF score: <13, first quartile; 13 to 21, second quartile; 22 to 28, third quartile; >28, fourth quartile. P value for log rank. AF = atrial fibrillation.