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Table 2 The efficacy of doors and windows screening on indoor host seeking densities of An. arabiensis (October and November 2011)

From: The effect of screening doors and windows on indoor density of Anopheles arabiensis in south-west Ethiopia: a randomized trial

Abdominal condition

Control N

# (Wald 95%CI)

Intervention N

#(Wald 95%CI)

Means ratio

% reduction

p

Unfed

189

2.4 (2.2, 2.7)

115

1.4 (1.1, 1.9)

0.58

42

0.004

Fresh fed

227

2.8 (2.3, 3.6)

143

1.8 (1.5, 2.1)

0.64

36

0.001

Half gravid

13

0.15 (0.1, 0.4)

10

0.13 (0.1, 0.3)

0.87

13

0.83

Gravid

197

2.5 (1.9, 3.5)

122

1.5 (1.2, 1.9)

0.60

40

0.002

Overall

626

7.9 (6.5, 10.1)

390

4.8 (3.9, 6.2)

0.60

40

0.006

  1. # Mean number of An. arabiensis per CDC light traps per night.