Table 2.

Estimation of average number of indoor Anopheles arabiensis catches per housing conditions using univariate analysis in three villages of central Ethiopia, July 2008-June 2010

Housing condition	Indoor-biting An. arabiensis		Indoor-resting An. arabiensis
	Mean (95% CI)	P value	Mean (95% CI)	P value
Occupants
≤4	0.57 (0.33–0.80)	0.055	1.48 (0.58–2.38)	0.042
≥5	0.91 (0.65–1.18)		3.05 (1.84–4.27)
Number of cattle
≤2	0.61 (0.34–0.89)	0.429	5.62 (3.56–7.68)	0.004
≥3	0.75 (0.54–0.96)		1.81 (0.29–3.32)
Sheep
≤1	0.73 (0.49–0.97)	0.921	2.36 (1.44–3.28)	0.402
≥2	0.71 (0.40–1.02)		1.61 (0.12–3.10)
Goat
≤1	0.60 (0.38–0.82)	0.035	1.97 (1.11–2.83)	0.333
≥2	1.06 (0.70–1.42)		2.99 (1.12–4.87)
Horse
0	0.70 (0.50–0.90)	0.441	2.21 (1.41–3.01)	0.501
≥1	0.96 (0.33–1.58)		0.73 (-3.51–4.96)
Donkey
0	0.75 (0.55–0.95)	0.493	2.32 (1.50–3.14)	0.155
≥1	0.56 (0.07–1.06)		0.28 (-2.42–2.97)
Chicken
≤1	0.62 (0.36–0.88)	0.263	1.91 (0.92 –2.91)	0.459
≥2	0.84 (0.57–1.12)		2.52 (1.26–3.79)
Window
Absent (n = 157)	1.02 (0.78–1.27)	<0.001	2.35 (1.30–3.39)	0.628
Present (n = 120)	0.27 (-0.04–0.60)		1.95 (0.72–3.18)
Hole on roof
Absent (n = 210)	0.61 (0.38–0.83)	0.023	1.17 (0.24–2.10)	<0.001
Present (n = 97)	1.12 (0.75–1.50)		4.81 (3.31–6.31)
Holes on wall
Absent (n = 138)	0.67 (0.32–1.02)	0.628	0.73 (-0.48–1.94)	0.002
Present (n = 171)	0.77 (0.54–1.01)		3.27 (2.22–4.32)
Open eaves
Absent (n = 198)	0.66 (0.43–0.88)	0.160	0.77 (-0.15 –1.69)	<0.001
Present (n = 98)	0.97 (0.60–1.34)		5.67 (4.22–7.12)
Village
Low	1.82 (1.53–2.12)	<0.001	5.35 (4.14–6.57)	<0.001
Mid	0.30 (-0.002–0.598)	<0.001	0.83 (-0.42–2.08)	<0.001
High	0.03 (-0.263–0.315)		0.02 (-1.17 –1.21)
Season
Wet	0.65 (0.34–0.96)	0.271	1.23 (-0.06–2.51)	0.023
Dry	0.89 (0.61–1.17)		3.22 (2.08–4.37)