| Categories | Frequency | Pct. (%) | |
| Number of people living together | 1 - 3 | 3714 | 75.7 |
| 4 - 6 | 1138 | 23.2 | |
| >6 | 55 | 1.1 | |
| Individual flow | yes | 1014 | 20.7 |
| no | 3893 | 79.3 | |
| Health education | yes | 3709 | 75.6 |
| no | 506 | 10.3 | |
| Health records | yes | 2131 | 43.4 |
| no | 2106 | 42.9 | |
| not known | 670 | 13.7 | |
| Inflow duration | <1 year | 336 | 6.8 |
| 1 - 2 years | 742 | 15.1 | |
| 3 - 4 years | 822 | 16.8 | |
| 5 - 9 years | 1315 | 26.8 | |
| ≥10 years | 1692 | 34.5 | |