Table 3.
Characteristics of cross-border malaria cases originating from Venezuela and Guyana into Brazil, by type, 2016–18
| Variable | From Venezuela | From Guyana | ||||
|---|---|---|---|---|---|---|
| Border | Transna-tional | χ2 p-value | Border | Transna-tional | χ2 p-value | |
| Sex | 0.012 | 0.126 | ||||
| Female | 2234 | 2201 | 17 | 1016 | ||
| Male | 4264 | 4611 | 60 | 2274 | ||
| Age group | < 0.001 | 0.071 | ||||
| Under 5 | 226 | 198 | 1 | 53 | ||
| 5 to 15 | 442 | 254 | 2 | 56 | ||
| 16 to 24 | 1524 | 1,489 | 21 | 635 | ||
| 25 to 40 | 2666 | 3,161 | 29 | 1801 | ||
| 41 to 64 | 1533 | 1659 | 23 | 731 | ||
| Over 65 | 107 | 51 | 1 | 14 | ||
| Nationality | < 0.001 | < 0.001 | ||||
| Brazil | 671 | 6486 | 73 | 3,258 | ||
| Venezuela | 5827 | 322 | 0 | 6 | ||
| G uyana | 0 | 3 | 4 | 25 | ||
| Others | 0 | 1 | 0 | 1 | ||
| Occupation | < 0.001 | < 0.001 | ||||
| Agriculture | 126 | 190 | 9 | 122 | ||
| Domestic | 370 | 89 | 1 | 66 | ||
| Forestry | 13 | 44 | 1 | 14 | ||
| Hunter/fisherman | 20 | 16 | 0 | 3 | ||
| Miner | 5370 | 4419 | 46 | 2472 | ||
| Tourist | 21 | 91 | 1 | 25 | ||
| Travelling | 87 | 209 | 2 | 46 | ||
| Other | 491 | 1754 | 36 | 542 | ||
| Detection method | < 0.001 | < 0.001 | ||||
| Active detection | 57 | 171 | 18 | 127 | ||
| Passive detection | 6439 | 6612 | 81 | 3136 | ||
| Parasite species | < 0.001 | 0.930 | ||||
| P. falciparum | 1384 | 1129 | 9 | 407 | ||
| P. vivax | 4606 | 4970 | 63 | 2638 | ||
| Mixed/other | 508 | 713 | 5 | 245 | ||
| State | < 0.001 | < 0.001 | ||||
| Acre | 0 | 2 | 0 | 0 | ||
| Amapá | 0 | 7 | 0 | 2 | ||
| Amazonas | 28 | 468 | 0 | 107 | ||
| Pará | 0 | 186 | 0 | 203 | ||
| Rondônia | 0 | 6 | 0 | 11 | ||
| Roraima | 6470 | 5696 | 77 | 2179 | ||
| Others | 0 | 437 | 0 | 788 | ||