Figure 2.

Receiver operating characteristic (ROC) curve of our scoring system for prediction of intravenous immunoglobulin (IVIG) resistance in Kawasaki disease (KD) patients under 1-year old. For the cut-off value of 2 points or more, the sensitivity and specificity were 87.0% and 78.4%, and the area under the curve (AUC) was 0.891 (95% confidence interval 0.837–0.945, p < 0.001).