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Table 4 Plasmodium falciparum circumsporozoite protein (CSP+) rates in Anopheles samples by method and year of collection

From: Patterns of anopheline feeding/resting behaviour and Plasmodium infections in North Cameroon, 2011–2014: implications for malaria control

HD

Collection method

Year of collection

Total

χ 2

P-value

2011

2012

2013

2014

n

CSP+ (%)

n

CSP+ (%)

n

CSP+ (%)

n

CSP+ (%)

n

CSP+ (%)

GRA

OUT

32

0

11

0

479

0.83

250

2.40

772

1.30

7.77

0.02

EXIT

16

0

9

0

287

1.05

121

4.96

433

2.08

IN

66

3.03

24

8.33

370

1.35

169

7.69

629

3.50

Total

114

1.75

47

4.25

1137

1.06

540

4.63

1834

2.23

22.42

0.00005

PIT

OUT

407

0.25

184

0

181

1.10

484

1.45

1256

0.80

17.98

0.0001

EXIT

14

0

20

0

293

1.02

227

2.64

554

1.62

IN

179

1.12

351

1.12

295

5.76

293

4.09

1118

3.22

Total

600

0.50

555

0.72

769

2.86

1004

2.49

2928

1.84

16.56

0.0008

MYO

OUT

3

0

21

0

30

0

44

4.55

98

2.04

2.06

0.36

EXIT

10

0

1

0

43

4.65

72

2.78

126

3.17

IN

34

2.94

5

20.00

57

7.02

71

4.22

167

5.39

Total

47

2.13

27

3.70

130

4.61

187

3.74

391

3.82

0.57

0.90

  1. Abbreviations: n, number of mosquitoes tested; HD, health district; GRA, Garoua; PIT, Pitoa; MYO, Mayo Oulo; OUT, outdoors; EXIT, exit trap; IN, indoors