The predictive value of these indices (Figure 3.10), cut off point is 50ms with SDNN area under the curve of 0.65, sensitivity is 37.5%, 98% specificity (AUC = 0.65; 95% CI: 0.47 - 0.84), cut off point 30ms with ASDNN area under the curve of 0.65 sensitivity is 50% specificity 87% (AUC = 0.65; 95% CI: 0.46 - 0.84).