| Characteristics | Origin | ||||||||||
| Elsewhere | Forécariah | Coyah | Dubreka | Total | |||||||
| N* | %* | N | % | N | % | N | % | N | % | ||
| Mode of contamination | Unknown | 3 | 16.7 | 42 | 32.3 | 9 | 20.9 | 5 | 20 | 59 | 27.3 |
| Other* person | 1 | 5.6 | 4 | 3.1 | 3 | 7.0 | 3 | 12.0 | 11 | 5.1 | |
| Parent | 14 | 77.8 | 84 | 64.6 | 31 | 72.1 | 17 | 68 | 146 | 67.6 | |
| Age range | ≤16 years | 2 | 11.1 | 31 | 23.8 | 9 | 20.9 | 3 | 12 | 45 | 20.8 |
| >16 years | 16 | 88.9 | 99 | 76.2 | 34 | 79.1 | 22 | 88 | 171 | 79.2 | |
| Sex | Female | 8 | 44.4 | 68 | 52.3 | 24 | 55.8 | 15 | 60 | 115 | 53.2 |
| Male | 10 | 55.6 | 62 | 47.7 | 19 | 44.2 | 10 | 40 | 101 | 46.8 | |
| Profession | Household | 5 | 27.8 | 41 | 31.5 | 11 | 25.6 | 11 | 44 | 68 | 31.5 |
| Student | 1 | 5.6 | 26 | 20 | 8 | 18.6 | 2 | 8 | 37 | 17.1 | |
| Cultivators | 3 | 16.7 | 23 | 17.7 | 4 | 9.3 | 2 | 8 | 32 | 14.8 | |
| Liberal | 5 | 27.8 | 19 | 14.6 | 13 | 30.2 | 4 | 16 | 41 | 19 | |
| Medical | 3 | 16.7 | 1 | 0.8 | 2 | 4.7 | 4 | 16 | 10 | 4.6 | |
| Other | 1 | 5.6 | 20 | 15.4 | 5 | 11.6 | 2 | 8 | 28 | 13.0 | |
| Marital status | Single | 2 | 11.1 | 49 | 37.7 | 15 | 34.9 | 3 | 12 | 69 | 31.9 |
| Married | 16 | 88.9 | 81 | 62.3 | 28 | 65.1 | 22 | 88 | 147 | 68.1 | |