Table 3.

Diagnostic value from ladder according to Objective Socioeconomic Status indicators

	Cutoff point	Sensitivity	Specificity	Youden Index c	AUCa	95% CI
Place of residence (urban)	2.5	0.50	0.74	0.24	0.651	0.639–0.663
Sex (female)	1.5	0.66	0.39	0.06	0.532	0.521–0.543
Education
No educationb	9.5	0.98	0.02	0.001	0.549	0.536–0.562
Primary (1–6)b	2.5	0.52	0.45	−0.03	0.519	0.507–0.530
Secondary (7–13)	2.5	0.52	0.56	0.08	0.551	0.539–0.564
Tertiary (University)	3.5	0.59	0.68	0.26	0.649	0.605–0.693
Overcrowding	2.5	0.49	0.55	0.04	0.517	0.499–0.536
Residents with a fixed salary
None	9.5	0.98	0.01	−0.02	0.642	0.631–0.652
One	1.5	0.72	0.42	0.14	0.582	0.571–0.593
Two or more	2.5	0.72	0.57	0.29	0.693	0.676–0.710
Household income
< = 10,000 AOAb	9.5	0.98	0.01	−0.01	0.594	0.581–0.607
10,001–30,000 AOA	1.5	0.72	0.38	0.10	0.547	0.534–0.559
>  30,000 AOA	4.5	0.33	0.78	0.11	0.548	0.531–0.564
Improved water source	2.5	0.52	0.65	0.18	0.604	0.593–0.615
Kitchen	4.5	0.26	0.84	0.11	0.574	0.563–0.585
Latrine	1.5	0.68	0.47	0.15	0.595	0.584–0.607
Watch television	1.5	0.70	0.56	0.26	0.677	0.666–0.688
Listen to the radio	2.5	0.54	0.62	0.15	0.586	0.573–0.597
Read newspaper	2.5	0.71	0.58	0.29	0.686	0.671–0.701
Associative filiation	2.5	0.50	0.66	0.16	0.596	0.585–0.607
Electricity	1.5	0.69	0.52	0.22	0.644	0.633–0.655
Generator	3.5	0.44	0.70	0.14	0.603	0.587–0.618
Radio	2.5	0.51	0.63	0.14	0.587	0.577–0.598
Television	1.5	0.71	0.55	0.26	0.671	0.661–0.682
Cell phone	2.5	0.51	0.74	0.25	0.666	0.655–0.677
Satellite dish	2.5	0.55	0.68	0.23	0.660	0.650–0.670
Fridge	2.5	0.65	0.58	0.23	0.652	0.637–0.667
Freezer	1.5	0.74	0.47	0.21	0.642	0.632–0.652
Car	3.5	0.55	0.72	0.26	0.675	0.658–0.689
Bed net ownership	7.5	0.05	0.96	0.01	0.489	0.478–0.501
Season (Rainy)	5.5	0.16	0.90	0.06	0.534	0.524–0.545

Case: yes|true; Control:no|false.

^a AUC Area under the curve.

^bInverted the score

^c Youden Index [50].