Table 5 Performance of stored nets: Chemical residue for PermaNet 1st generation baseline samples unused, unwashed but exposed to air and light.
Time | Deltamethrin on net | Bioassay results (A. gambiae) | ||
|---|---|---|---|---|
In brackets samples/nets tested | Median (mg/m2) | Inter-Quartile-Range IQR (mg/m2) | Median Functional Mortality (%) | Inter-Quartile-Range IQR for mortality (%) |
Baseline (40/10) | 47.5 | 32.9 – 52.2 | 98.0 | 96 – 99 |
11 months (10/10) | 46.4 | 37.4 – 49.3 | 99.0 | 85 – 100 |
27 months (10/10) | 50.3 | 45.1 – 55.0 | Not done | Not done |
39 months (10/10) | 42.9 | 34.9 – 47.6 | 97.0 | 96 – 98 |
60 months (10/10) | 48.9 | 34.4 – 54.9 | 93.0 | 90 – 96 |