| 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 |