Preferred resting surfaces of dominant malaria vectors inside different house types in rural south-eastern Tanzania

Msugupakulya, Betwel J.; Kaindoa, Emmanuel W.; Ngowo, Halfan S.; Kihonda, Japhet M.; Kahamba, Najat F.; Msaky, Dickson S.; Matoke-Muhia, Damaris; Tungu, Patrick K.; Okumu, Fredros O.

doi:10.1186/s12936-020-3108-0

Table 4 Relationship between of household risk factors and indoor temperatures on mosquito resting preference on different surfaces

From: Preferred resting surfaces of dominant malaria vectors inside different house types in rural south-eastern Tanzania

		Anopheles funestus		Anopheles arabiensis		Culex mosquitoes
		RR (95% CI)	p value	RR (95% CI)	p value	RR (95% CI)	p value
Number of mosquitoes caught resting on walls
Roof type	Iron sheets	1.00		1.00		1.00
	Grass thatch	2.20 (0.87–5.56)	0.090	1.93 (0.46–8.10)	0.400	1.04 (0.43–2.46)	0.940
Wall type	Brick	1.00		1.00		1.00
	Mud	0.17 (0.07–0.41)	0.001	0.33 (0.09–1.24)	0.100	0.97 (0.42–2.26)	0.950
Interior walls	Plastered	1.00		1.00		1.00
	Un-plastered	3.66 (1.34–10.02)	0.010	1.65 (0.22–12.25)	0.620	0.96 (0.38–2.48)	0.940
Eave space	Closed	1.00		1.00		1.00
	Open	0.38 (0.13–1.13)	0.080	1.68 (0.23–12.26)	0.610	1.04 (0.40–2.74)	0.940
Increasing no. rooms		1.51 (1.08–2.11)	0.020	2.48 (1.38–4.47)	0.002	1.16 (0.86–1.58)	0.330
Increasing wall height		0.38 (0.13–1.11)	0.080	0.12 (0.02–0.79)	0.030	1.05 (0.42–2.65)	0.910
Increasing max. temp.		0.97 (0.93–1.02)	0.220	1.16 (1.07–1.25)	0.001	1.02 (0.97–1.07)	0.410
Number of mosquitoes caught resting on the underside of roofs
Roof types	Iron sheet	1.00		1.00		1.00
	Grass thatch	6.07 (1.78–20.70)	0.004	92.16 (9.90–857.94)	0.001	3.96 (1.51–10.36)	0.005
Wall type	Brick	1.00		1.00		1.00
	Mud	0.27 (0.09–0.77)	0.010	0.39 (0.09–1.68)	0.210	0.80 (0.32–2.01)	0.630
Interior walls	Plastered	1.00		1.00		1.00
	Un-plastered	1.55 (0.44–5.46)	0.500	0.29 (0.02–4.74)	0.390	0.74 (0.26–2.12)	0.570
Eave space	Closed	1.00		1.00		1.00
	Open	0.25 (0.06–0.98)	0.046	0.91 (0.06–14.53)	0.910	0.53 (0.18–1.54)	0.240
Increasing no. rooms		1.48 (0.97–2.26)	0.070	2.49 (1.25–4.96)	0.010	1.44 (1.03–2.00)	0.030
Increasing wall height		0.25 (0.06–0.95)	0.040	0.55 (0.06–4.71)	0.570	0.87 (0.31–2.41)	0.790
Increasing max. temp.		1.02 (0.97–1.07)	0.410	1.13 (1.06–1.20)	0.001	0.98 (0.93–1.02)	0.300
Number of mosquitoes caught resting on other surfaces inside the houses
Roof types	Iron sheet	1.00		1.00		1.00
	Grass thatch	2.12 (0.85–5.31)	0.110	3.75 (0.88–16.03)	0.070	1.66 (0.68–4.02)	0.260
Wall type	Brick	1.00		1.00		1.00
	Mud	0.22 (0.09–0.55)	0.001	0.59 (0.13–2.78)	0.510	0.92 (0.38–2.21)	0.840
Interior walls	Plastered	1.00		1.00		1.00
	Un-plastered	0.92 (0.33–2.54)	0.870	2.77 (0.44–17.51)	0.280	0.81 (0.30–2.13)	0.660
Eave space	Closed	1.00		1.00		1.00
	Open	2.91 (1.00–8.46)	0.049	1.95 (0.28–13.71)	0.500	1.23 (0.46–3.33)	0.680
Increasing No. rooms		1.16 (0.84–1.60)	0.370	1.61 (0.90–2.88)	0.110	1.25 (0.91–1.71)	0.160
Increasing wall height		0.84 (0.29–2.41)	0.750	2.68 (0.46–15.65)	0.270	3.18 (1.21–8.33)	0.020
Increasing max. temp.		0.93 (0.90–0.97)	0.001	1.12 (1.06–1.19)	0.001	1.03 (0.98–1.08)	0.280

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