Table 6.
PCR-Plasmodium prevalence among gold miners in pre/post intervention surveys
| Pre intervention survey |
Post intervention survey |
|||
|---|---|---|---|---|
| Surinamese border | Brazilian border | Surinamese border | Brazilian border | |
| Time period | Jan-Jun 2015 | May-Jun 2018 and Nov 2018 | Oct-Dec 2019 | Oct-Dec 2019 |
| N | 421 | 178 | 380 | 119 |
| Plasmodium-PCR positive (n) | 94 | 7 | 20 | 3 |
| Plasmodium-PCR prevalence % [95% CI] | 22.3 [18.3-26.3] |
3.9 [1.6-7.9] |
5.3 [3.0-7.5] |
2,5 [0.5-7.2] |
| Species | Pf=47.9% Pv=37.2% Pm=3.2% Pf+Pv=10.6% Pv+Pm=10.6% |
Pf=14.3% Pv=85.7% |
Pf=15.0% Pv=75.0% Pm=10.0% |
Pv=100% |
| Asymptomatics carriage* % [95% CI] | 18.7 [15.1-22.8] |
3.9 [1.6-7.9] |
4.5 [2.6-7.1] |
0.8 [0.02-4.6]] |
| p-value PCR prevalence pre/post | <0.001 | 0.745 | ||
| p-value asymptomatic carriage pre/post | <0.001 | 0.227 | ||
*definition on the Brazilian border = having fever at the time of inclusion, on the Surinamese border = reporting fever in the last 48 hours and/or having fever at the time of inclusion