| Variables | Cotation | |||
| Electricity | ・ Yes: 3 | ・ No: 0 | ||
| Water | ・ Yes: 3 | ・ No: 0 | ||
| Food reserve | ・ Yes: 3 | ・ No: 0 | ||
| Habitat type | ・ Modern: 3 | ・ Precarious: 1 ・ Immeuble: 3 | ||
| Number of rooms in the habitat | ・ ≥3:2 | ・ <3: 1 | ||
| Daily family budget ($ US) | ・ >6$:3 | ・ 4 - 5$: 2 | ・ <3$: 1 | |
| Parents’ monthly income | ・ >180$:3 | ・ 90 - 180$: 2 | ・ <90$: 1 | |
| Toilet | ・ Modern: 2 | ・ Traditional: 1 | ・ Absent: 0 | |