Fig. 2

a & b: Ejection fraction (EF) in patients with DCM. The box and plot graph reveal that dead patients had lower EF at presentation (a). The ROC curve (b) reveals that EF at presentation of 20% or less carries a high risk for mortality with a sensitivity and specificity of 76% and 97%, respectively, with an area under the curve of 0.323, and a P-value of 0.001 (95% CI 0.22-0.427)