Table 3.

ROC curve analysis results: AUC, cut-off values, respective sensitivities and specificities of imaging semi-quantitative parameters for diagnosing BA. AUC: area under the curve; ROC: receiver operating characteristic curve; BA: biliary atresia

Semi-quantitative index	Cut off value	Sensitivity	Specificity	AUC	95% CI	p-value
LBR at 5 min	≤ 1.39	66.7	73.3	0.692	0.523–0.860	0.026
LKR at 5 min	≤ 2.99	70.8	66.7	0.681	0.509–0.852	0.039
LBR at 24 h	≤ 4.8	66.7	66.7	0.711	0.538–0.885	0.017
LKR at 24 h	≤ 4.64	62.5	73.3	0.660	0.475–0.845	0.049