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

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)