Table 3 Comparison of treatments for mortality to drop below 80% and 50% for laboratory, simple hut, and experimental hut bioassays
Substrate | Treatment comparison | Difference in estimated time to 80% mortality | Difference in estimated time to 50% mortality | ||||
|---|---|---|---|---|---|---|---|
Time (months) | 95% CI | P-value | Time (months) | 95% CI | P-value | ||
Laboratory Bioassays | |||||||
Mud | SC-PE 50 vs SC-PE 25 | 5.0 | (4.0 to 6.2) | <0.05 | 4.2 | (3.0 to 5.6) | <0.05 |
SC-PE 50 vs WG | 5.3 | (4.4 to 6.3) | <0.05 | 4.9 | (4.0 to 6.2) | <0.05 | |
SC-PE 50 vs DDT | 8.2 | (7.2 to 9.4) | <0.05 | 7.4 | (6.4 to 8.7) | <0.05 | |
SC-PE 25 vs WG | 0.2 | (-0.8 to 1.2) | n/s | 0.7 | (-0.1 to 1.6) | n/s | |
SC-PE 25 vs DDT | 3.2 | (2.1 to 4.3) | <0.05 | 3.2 | (2.3 to 4.3) | <0.05 | |
WG vs DDT | 2.9 | (2.0 to 3.9) | <0.05 | 2.5 | (1.7 to 3.2) | <0.05 | |
Concrete | SC-PE 25 vs WG | 0.6 | (-1.5 to 2.5) | n/s | †| †| †|
SC-PE 25 vs DDT | 5.4 | (3.8 to 7.3) | <0.05 | †| †| †| |
WG vs DDT | 4.8 | (3.0 to 6.8) | <0.05 | †| †| †| |
Simple Hut Bioassays | |||||||
Mud | SC-PE 50 vs SC-PE 25 | †| †| †| −1.4 | (0.4 to -3.7) | n/s |
|  | SC-PE 50 vs WG | †| †| †| 2.0 | (-0.5 to 4.5) | n/s |
|  | SC-PE 25 vs WG | †| †| †| 3.4 | (1.6 to 5.9) | <0.05 |
Concrete | SC-PE 50 vs SC-PE 25 | 3.2 | (1.8 to 4.7) | <0.05 | 2.3 | (0.5 to 4.0) | <0.05 |
|  | SC-PE 50 vs WG | †| †| †| 12.6 | (10.6 to 15.1) | <0.05 |
|  | SC-PE 25 vs WG | †| †| †| 10.3 | (8.3 to 13.0) | <0.05 |
Experimental Hut Bioassays | |||||||
Mud | SC-PE 25 vs WG | †| †| †| 7.5 | (4.4 to 13.8) | <0.05 |
|  | SC-PE 25 vs DDT | †| †| †| 4.7 | (2.6 to 7.2) | <0.05 |
|  | WG vs DDT | †| †| †| −2.8 | (-9.9 to 0.5) | n/s |
Concrete | SC-PE 25 vs WG | 5.7 | (1.9 to 11.6) | <0.05 | †| †| †|
|  | SC-PE 25 vs DDT | 4.4 | (1.3 to 9.5) | <0.05 | †| †| †|
|  | WG vs DDT | −1.2 | (-5.9 to 2.4) | n/s | †| †| †|