Fig. 1.

Receiver operating characteristic (ROC) curve with four electrocardiogram criteria for detecting left ventricular hypertrophy (LVH). A: the ROC curve for defining LVH using left ventricular mass (LVM)/body surface area (BSA) ≥116 g/m² in males. B: LVM/BSA ≥96 g/m² in females. C: LVM/height^2.7 ≥49 g/m^2.7 in males. D: LVM/height^2.7 ≥45 g/m^2.7 in females. ^*p<0.05, ^†p<0.01. blue: Sok V, brown: Sok P, orange: Cor V and green: Cor P. Sok V: Sokolow-Lyon voltage, Cor V: Cornell voltage, Sok P: Sokolow-Lyon product, Cor P: Cornell product, CI: confidence interval, AUC: area under the curves.