Table 7 Indoor and outdoor densities of the malaria vector species, An. arabiensis and An. funestus mosquitoes in houses with different characteristics in Ifakara town and its adjacent wards
House characteristics | No. houses (N) | Mean no. An. arabiensis per house [LCI–UCI] | Mean no. An. funestus per house [LCI–UCI] | t-test P-value |
|---|---|---|---|---|
Indoor mosquito densities (association of vector densities with electricity) | ||||
 Without electricity | 53 | 59.1 [27.9–90.3] | 4.63 [2.2–7.1] | <0.05 |
 With electricity | 57 | 7.3 [4.6–10.0] | 0.18 [− 0.03–0.4] | |
Outdoor mosquito densities (association of vector densities with electricity) | ||||
 Without electricity | 53 | 67.2 [18.0–116.4] | 2.6 [0.2–4.9] | <0.05 |
 With electricity | 57 | 12.0 [1.7–22.6] | 0.3 [0.1–0.5] | |
Indoor mosquito densities (association of vector densities with window covering) | ||||
 Windows covered with netting screen | 57 | 14.8 [7.0–22.6] | 1.6 [0.4–2.8] | <0.05 |
 Windows covered with wood or metal | 19 | 24.0 [18.1–29.9] | 0.8 [− 0.2–1.8] | |
 Windows covered with bricks | 18 | 36.1 [11.5–83.7] | 3.6 [− 1.3–8.5] | |
 Windows covered with cardboard/clothes | 15 | 75.3 [4.3–146.3] | 5.4 [0.2–10.7] | |
 Windows uncovered | 1 | 471.0 [471.0–471.0] | 3.0 [3.0–3.0] | |