Table 3.
Multivariable analyses (GEE) of factors affecting the emergence of adult malaria vectors over a six week period from artificial ponds treated with Sumilarv®0.5G
| Explanatory variable | OR | 95% CI | p |
|---|---|---|---|
|
Treatment |
|
|
|
| 1 mg ai per m2 |
0.03 |
0.02-0.05 |
<0.0001 |
| 5 mg ai per m2 |
0.15 |
0.12-0.18 |
<0.0001 |
| control |
1 |
|
|
|
Round |
|
|
|
| round 3 |
1.19 |
1.00-1.41 |
0.050 |
| round 2 |
1.03 |
0.78-1.34 |
0.859 |
| round 1 |
1 |
|
|
|
Vector species |
|
|
|
|
An. arabiensis |
0.95 |
0.86-1.05 |
0.278 |
|
An. gambiae s.s. |
1 |
|
|
|
Water turbidity |
|
|
|
| turbid |
1.01 |
0.95-1.07 |
0.765 |
| clear |
1 |
|
|
|
Water pH |
|
|
|
| ≥ 8 |
0.99 |
0.91-1.08 |
0.820 |
| < 8 |
1 |
|
|
|
Rain during test week |
|
|
|
| rain |
1.05 |
0.92-1.20 |
0.449 |
| no rain |
1 |
|
|
|
Interaction between treatment and turbidity | |||
| 5 mg ai per m2*turbid |
1.93 |
1.12-3.26 |
0.017 |
| 5 mg ai per m2*clear |
1 |
|
|
| 1 mg ai per m2*turbid |
1.40 |
1.08-1.79 |
0.011 |
| 1 mg ai per m2*clear |
1 |
|
|
|
Interaction between treatment and pH | |||
| 5 mg ai per m2*pH≥8 |
1.90 |
1.13-2.85 |
0.002 |
| 5 mg ai per m2*pH<8 |
1 |
|
|
| 1 mg ai per m2*pH≥8 |
1.25 |
1.06-1.47 |
0.008 |
| 1 mg ai per m2*pH<8 |
1 |
|
|
|
Interaction between treatment and rain | |||
| 5 mg ai per m2*rain |
1.23 |
0.89-1.69 |
0.211 |
| 5 mg ai per m2*no rain |
1 |
|
|
| 1 mg ai per m2*rain |
0.87 |
0.70-1.07 |
0.870 |
| 1 mg ai per m2*no rain | 1 | ||