Table 4.

Diagnostic properties of AUDIT to detect alcohol use disorder among medical patients in DURH, southern Ethiopia, 2020 (n = 325).

	AUDIT cut-off score	Sensitivity	Specificity	PPV	NPV	LR+	LR−	Youden’s Index
Total	5	0.96	0.70	56.6	97.6	3.20	0.06	0.66
	6	0.95	0.77	62.2	97.3	4.05	0.07	0.71
	7	0.94	0.80	65.7	96.9	4.70	0.08	0.74
	8	0.94	0.84	69.8	97.0	5.67	0.08	0.77
	9	0.88	0.86	71.6	94.7	6.17	0.14	0.74
	10	0.83	0.89	75.0	92.8	7.35	0.19	0.72
	11	0.77	0.91	78.3	90.6	8.80	0.26	0.68
	12	0.76	0.91	78.0	90.2	8.68	0.27	0.67
	13	0.76	0.92	78.9	90.2	9.21	0.27	0.67
	14	0.71	0.92	77.9	88.7	8.70	0.31	0.63
	Area under the curve for men = 0.93 (95% CI = 0.90–0.97); SE = 0.019
For male	5	0.97	0.65	56.6	97.5	2.74	0.05	0.61
	6	0.95	0.74	63.2	96.8	3.62	0.07	0.69
	7	0.95	0.76	65.5	96.9	3.98	0.07	0.71
	8	0.95	0.80	69.6	97.0	4.81	0.06	0.75
	9	0.91	0.81	69.7	95.7	4.84	0.11	0.73
	10	0.91	0.84	72.6	95.3	5.57	0.10	0.75
	11	0.83	0.85	72.7	91.2	5.59	0.20	0.68
	12	0.81	0.85	72.3	90.4	5.47	0.22	0.66
	13	0.81	0.86	73.4	90.5	5.83	0.22	0.67
	14	0.79	0.86	73.0	89.7	5.71	0.24	0.65
	Area under the curve for men = 0.93 (95% CI = 0.90–0.97); SE = 0.019
For female	5	0.94	0.76	56.7	97.6	3.95	0.07	0.71
	6	0.94	0.80	60.7	97.8	4.67	0.07	0.74
	7	0.92	0.84	66.0	96.8	5.88	0.10	0.76
	8	0.92	0.87	70.2	96.9	7.16	0.10	0.79
	9	0.83	0.91	75.0	94.3	9.05	0.18	0.74
	10	0.69	0.95	80.6	90.4	12.62	0.32	0.64
	11	0.67	0.98	92.3	89.9	37.06	0.34	0.65
	12	0.58	0.98	92.3	89.9	32.39	0.42	0.57
	13	0.56	0.98	92.3	89.9	30.89	0.45	0.54
	14	0.42	1.00	91.3	87.7	–	0.58	0.42
	Area under the curve for women = 0.96 (95% CI = 0.92–0.99); SE: 0.016

PPV: positive predictive value; NPV: negative predictive value; LR: likelihood ratio; CI: confidence interval; SE: standard error.

Bold indicated an optimum cut-off point corresponding with diagnostic properties.