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Figure 2 Adjusted survival curves for each of the five methods of quantifying coronary artery disease (CAD). All curves additionally adjusted for age, ejection fraction, gender, New York Heart Association functional class, diabetes mellitus and valvular heart disease. (A) Traditional binary classification. (B) Modified binary classification. (C) CAD index. (D) Number-of-diseased-vessels classification. (E) Modified number-of-diseased-vessels classification.