| Variables | n (%) | |
| Age/year | [18 - 30] | 395 (64.44) |
| [30 - 40] | 105 (17.13) | |
| [40 - 50] | 67 (10.93) | |
| [50 - 60] | 38 (6.20) | |
| ≥60 | 8 (1.31) | |
| Sex | Feminine | 173 (28) |
| Masculine | 440 (72) | |
| Country of origin | Niger | 516 (84.17) |
| Togo | 3 (0.50) | |
| Tchad | 35 (5.71) | |
| Cameroun | 7 (1.14) | |
| Bénin | 51 (8.32) | |
| Nigeria | 1 (0.16) | |
| Monthly income | <34,000 | 212(34.60) |
| [34,000 à 70,000] | 272 (44.40) | |
| >70,000 | 129 (21.00) | |