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Table 4 Variation of sporozoite rate (SR) in five districts in Gbêkê region, central Côte d’Ivoire between November–December 2016

From: Entomological indicators of malaria transmission prior to a cluster-randomized controlled trial of a ‘lethal house lure’ intervention in central Côte d’Ivoire

District

Indoor

Outdoor

Indoor + Outdoor

N3

n

SR (%) [95% CI]

N3

n

SR (%) [95% CI]

N3

n

SR (%) [95% CI]

Béoumi

 An. gambiae s.l

87.38

4

4.57 [1.48–11.95]

87.08

2

2.30 [0.40–8.83]

174.64

6

3.43 [1.40–7.67]

 An. funestus s.l

10

0

0.00 [0.00–0.00]

18.99

2

10.53 [1.84–34.54]

28.93

2

6.91 [1.21–24.26]

 Pooled values

97.49

4

4.10 [1.32–10.77]

106.31

4

3.76 [1.21–9.91]

203.97

8

3.92 [1.83–7.86]

Southern-Bouaké

 An. gambiae s.l

225.49

8

3.55 [1.65–7.13]

91.81

4

4.36 [1.40–11.40]

317.16

12

3.78 [2.06–6.69]

 An. funestus s.l

120.51

8

6.64 [3.12–13.07]

103.52

5

4.83 [1.79–11.44]

223.98

13

5.81 [3.26–9.95]

 Pooled values

344.36

16

4.65 [2.77–7.59]

196.38

9

4.58 [2.25–8.80]

540.79

25

4.62 [3.07–6.84]

North-Eastern-Bouaké

 An. gambiae s.l

62.64

9

14.37 [7.18–26.03]

56.00

4

7.14 [2.31–18.12]

119.17

13

10.91 [6.17–18.26]

 An. funestus s.l

106.82

20

18.72 [12.07–27.67]

81.42

13

15.97 [9.10–26.12]

187.59

33

17.59 [12.5–23.97]

 Pooled values

168.44

29

17.22 [12.01–23.96]

140.18

17

12.13 [7.43–18.97]

307.23

46

14.97 [11.27–19.57]

North-Western-Bouaké

 An. gambiae s.l

274.54

6

2.18 [0.89–4.93]

274.52

16

5.83 [3.48–9.47]

549.09

22

4.01 [2.59–6.10]

 An. funestus s.l

36

2

5.55 [0.97–20.01]

32.94

1

3.03 [0.16–17.54]

68.91

3

4.35 [1.13–13.03]

 Pooled values

313.24

8

2.55 [1.19–5.16]

308.98

17

5.50 [3.34–8.83]

622.22

25

4.02 [2.67–5.96]

Sakassou

 An. gambiae s.l

187.55

7

3.73 [1.64–7.85]

164.63

3

1.82 [0.47–5.65]

352.76

10

2.83 [1.45–5.32]

 An. funestus s.l

132.5

2

1.51 [0.26–5.90]

93.92

6

6.39 [2.62–13.92]

227.27

8

3.52 [1.64–7.07]

 Pooled values

321.92

9

2.79 [1.37–5.42]

266.76

9

3.37 [1.65–6.52]

588.75

18

3.06 [1.88–4.88]

Overall

 An. gambiae s.l

842.94

34

4.03 [2.85–5.65]

677.55

29

4.28 [2.93–6.16]

1521.76

63

4.14 [3.22–5.30]

 An. funestus s.l

405.62

32

7.89 [5.54–11.06]

330.75

27

8.16 [5.54–11.79]

736.21

59

8.01 [6.20–10.27]

 Pooled values

1252.42

66

5.27 [4.13–6.69]

1023.55

56

5.47 [4.19–7.09]

2276.53

122

5.36 [4.49–6.38]

  1. N3 number of Anopheles parous (P) examined plus relevant non-parous specimens (NP), SR sporozoite rate, n number of Anopheles species infected. For the SR distribution, values between An. gambiae s.l. and An. funestus s.l. were significantly different overall (Chi-square test; P < 0.05). There were no significant differences between outdoor and indoor SR for both species (Chi-square test; P > 0.05). CI confidence interval