FIGURE 3.

HSROC and AUC of reviewed studies for HCM and ECG, HCM and ECHO, HCM and ECG/ECHO (ECG combined with ECHO), and LQTS and ECG. Solid black lines represent summaries of reviewed studies and other lines represent individual studies. The lines describe the relationship between (average) sensitivity and (average) specificity for varying diagnostic thresholds (eg, increasingly stringent ECG or ECHO criteria in the 2 top panels, respectively). These lines describe average test performance. It is generally not straightforward to correspond specific points on the curve to specific cut points for ECG or ECHO. The x-axis is restricted to the range of the data.