The value of combining the simple anthropometric obesity parameters, Body Mass Index (BMI) and a Body Shape Index (ABSI), to assess the risk of non-alcoholic fatty liver disease

Table 5 The best threshold, sensitivities, specificities, Youden’s index, and area under the curve of BMIWC, BMIABSI, O_BMI+ABSI, O_BMI+WC, BMI, WC, ABSI, and ARI in different genders

	AUC	95%CI low	95%CI up	Best threshold	Specificity	Sensitivity	Youden’s index
Female
BMI^**	0.8799	0.8648	0.8950	22.7565	0.8177	0.7950	0.6127
WC^**	0.8695	0.8545	0.8844	74.2500	0.7050	0.8745	0.5804
ABSI^ ARI^	0.6171 0.8912	0.5916 0.8775	0.6426 0.9048	75.7925 12.7825	0.5926 0.7735	0.5962 0.8577	0.1888 0.6312
O_BMI+ABSI^**	0.8912	0.8775	0.9048	30.4143	0.7733	0.8577	0.6310
O_BMI+WC	0.8888	0.8750	0.9027	34.1234	0.7716	0.8556	0.6272
BMI*ABSI	0.8884	0.8748	0.9021	1704.2100	0.7922	0.8285	0.6207
BMI*WC	0.8888	0.8750	0.9027	1674.1183	0.7733	0.8556	0.6286
Male
BMI^**	0.8160	0.8055	0.8264	23.5555	0.7382	0.7309	0.4691
WC^**	0.8102	0.7998	0.8207	80.6500	0.6674	0.8034	0.4708
ABSI^**	0.5795	0.5653	0.5936	74.9128	0.4052	0.7240	0.1292
ARI^**	0.8270	0.8170	0.8369	13.6096	0.7456	0.7457	0.4913
O_BMI+ABSI^**	0.8270	0.8170	0.8369	33.2569	0.7458	0.7457	0.4915
O_BMI+WC	0.8242	0.8141	0.8343	39.8313	0.7438	0.7447	0.4885
BMI*ABSI	0.8257	0.8157	0.8356	1758.7590	0.6761	0.8117	0.4878
BMI*WC	0.8244	0.8143	0.8345	1944.0433	0.7551	0.7329	0.4880

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