3.4 Receiver operating characteristic analysis for the diameters of the FO and VSD for urgent BAS
Receiver operating characteristic curve analysis showed a good discriminatory estimate of FO and VSD diameters in predicting urgent BAS in patients with d-TGA. A cut off of 6 mm for the FO diameter (sensitivity, 73.3%; specificity, 72.2%; area under the curve [AUC], 0.764) and 3.2 mm for the VSD diameter (sensitivity, 75%; specificity, 75%; AUC, 0.728) suggested urgent BAS (Table 6) (Figure 2).