Table 3.
DEC-medicated salt community trial details. The ratio DEC by salt/DEC by MDA is a measure describing the total amount of DEC consumed per person by consuming medicated salt relative to the amount of DEC which would be consumed through the standard dose given for annual MDA interventions (6 mg/kg DEC plus 400 mg ALB) over the same time period of the DEC salt treatment.
| Country | Village | DEC Salt Content (w/w) | Duration of Treatment (months) | Post-treatment mf surveyb | Total DEC Dose (g) | Total DEC dose from equivalent MDA (g) | DEC by salt/DEC by MDA | ||
|---|---|---|---|---|---|---|---|---|---|
| No. Sampled | No. mf Positivea | Mf prevalence (% reduction from baseline) | |||||||
| China | Yangwen 1st | 0.30% | 6 | 557 | 5 | 0.9 (91.6) | 7.5c | 0.3 | 25 |
| China | Yangwen 2nd | 0.30% | 6 | 866 | 10 | 1.2 (88.3) | 7.5c | 0.3 | 25 |
| China | Yangwen 3rd | 0.30% | 6 | 755 | 10 | 1.3 (86.9) | 7.5c | 0.3 | 25 |
| China | Yangwen 4th | 0.30% | 6 | 1103 | 13 | 1.2 (86.9) | 7.5c | 0.3 | 25 |
| China | Sungisun | 0.30% | 6 | 1116 | 3 | 0.3 (96.4) | 7.5c | 0.3 | 25 |
| China | Hseihchuang | 0.30% | 6 | 1369 | 20 | 1.5 (85.1) | 7.5c | 0.3 | 25 |
| India | Lakshadweep | 0.1–0.15% | 27 | 12075 | 209 | 1.7 (80.1) | 12 | 0.9 | 13.3 |
| India | Karaikal | 0.1–0.2% | 48 | 1430 | 4 | 0.3 (96.8) | 13.3 | 1.2 | 11.1 |
| Taiwan | Little Kinmen | 0.33% | 6 | 5694 | 0 | 0.0 (100) | 7.7 | 0.3 | 25.8 |
| Tanzania | Kwemwale/Nkumba | 0.33% | 12 | 369 | 12 | 3.3 (90.9) | 7.9c | 0.3 | 26.3 |
| Haiti | Miton | 0.25% | 12 | 409 | 8 | 2.0 (95.0) | 17.4c | 0.3 | 57.8 |
aThe number of positive cases is corrected for blood sample volume using a correction factor of 1.15 for 100 μL and 60 μL samples and 1.95 for 20 μL samples30.
bPost-treatment mf prevalence observations were made at the end of the community trial with the exception of Little Kinmen for which data was available 1 year after the end of trial.
cEstimates were made assuming an average weight of 50 kg.