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Table 1 Numbers of female mosquitoes caught using different trapping methods

From: Standardizing operational vector sampling techniques for measuring malaria transmission intensity: evaluation of six mosquito collection methods in western Kenya

Trapping method

Total catch

Mean catch per night (95% CI)

Relative capture rate (95% CI)

p-value

Anopheles gambiae s.l.

    

HLC indoor

208

1.96 (1.39, 2.54)

1.00*

NA

HLC outdoor

180

1.70 (1.13, 2.27)

1.01 (0.76, 1.34)

0.947

CDC light trap

225

2.12 (1.36, 2.89)

1.18 (0.55, 2.54)

0.666

Ifakara Tent Trap

213

2.01 (1.55, 2.47)

1.39 (0.88, 2.19)

0.153

Window exit trap

117

1.10 (0.66, 1.54)

0.52 (0.30, 0.91)

0.022

Pot resting trap indoor

8

0.08 (0.01, 0.14)

0.05 (0.02, 0.11)

<0.001

Pot resting trap outdoor

48

0.45 (0.26, 0.64)

0.32 (0.12, 0.87)

0.025

Box resting trap indoor

0

0.00#

0.00#

NA

Box resting trap outdoor

13

0.12 (0.05, 0.19)

0.08 (0.04, 0.14)

<0.001

Anopheles funestus

    

HLC indoor

43

0.41 (0.20, 0.61)

1.00*

NA

HLC outdoor

20

0.19 (0.05, 0.33)

0.47 (0.32, 0.70)

<0.001

CDC light trap

29

0.27 (0.12, 0.43)

0.69 (0.49, 0.98)

0.04

Ifakara Tent Trap

52

0.49 (0.27, 0.71)

1.21 (0.88, 1.68)

0.245

Window exit trap

20

0.19 (0.08, 0.30)

0.49 (0.36, 0.65)

<0.001

Pot resting trap indoor

0

0.00#

0.00#

NA

Pot resting trap outdoor

1

0.01 (0.00, 0.03)

0.02 (0.00, 0.24)

0.001

Box resting trap indoor

0

0.00#

0.00#

NA

Box resting trap outdoor

0

0.00#

0.00#

NA

Culex spp.

    

HLC indoor

4915

46.37 (36.96, 55.78)

1.00*

NA

HLC outdoor

6566

61.94 (51.78, 72.10)

1.49 (1.10, 2.00)

0.009

CDC light trap

1122

10.58 (6.82, 14.35)

0.21 (0.15, 0.31)

<0.001

Ifakara Tent Trap

1406

13.26 (7.69, 18.84)

0.38 (0.20, 0.72)

0.003

Window exit trap

271

2.56 (1.35, 3.77)

0.07 (0.03, 0.13)

<0.001

Pot resting trap indoor

81

0.76 (0.48, 1.05)

0.02 (0.01, 0.03)

<0.001

Pot resting trap outdoor

80

0.75 (0.38, 1.13)

0.02 (0.01, 0.04)

<0.001

Box resting trap indoor

26

0.25 (0.06, 0.43)

0.00 (0.00, 0.01)

<0.001

Box resting trap outdoor

58

0.55 (0.14, 0.96)

0.01 (0.00, 0.02)

<0.001

  1. Data were combined across all four districts (106 nights for each trap type). Catch rates (relative to HLC indoor), 95% confidence interval, and p-value were calculated using negative binomial regression models. Relative capture rates statistically different from HLC indoor (p < 0.05) are indicated in bold.
  2. * Reference collection method.
  3. # Trap types that captured zero females were excluded from the model for that species.