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Table 2 Active ingredient contents of long-lasting insecticidal net samples used in the experimental hut trial in Tiassalé, Côte d’Ivoire

From: Small-scale field evaluation of PermaNet® Dual (a long-lasting net coated with a mixture of chlorfenapyr and deltamethrin) against pyrethroid-resistant Anopheles gambiae mosquitoes from Tiassalé, Côte d’Ivoire

Net sample

Unit

Dose interval limit

Before hut trial

After hut trial

Mean ± SE [95% CI]

Unwashed

(initial reference)

Washed

Unwashed

Washed

Dose mean

% reduction

Dose mean

% reduction

Dose mean

% reduction

PermaNet® Dual (A)

 Deltamethrin

g/kg

2.1 ± 25% [1.58–2.63]

1.84 ± 0.15

2.16 ± 0.17

− 17.4

 Chlorfenapyr

g/kg

5.0 ± 25% [3.75–6.25]

4.25 ± 0.50

5.31 ± 0.57

− 24.9

 Mass per unit area

g/m2

40 ± 10% [36–44]

39.80 ± 0.74

38.78 ± 0.59

2.6

PermaNet® Dual (B)

 Deltamethrin

g/kg

2.1 ± 25% [1.58—2.63]

2.41 ± 0.27

1.04 ± 0.15*

56.8

2.47 ± 0.20

− 2.5

1.23 ± 0.17*

49.0

 Chlorfenapyr

g/kg

5.0 ± 25% [3.75–6.25]

4.98 ± 0.42

1.84 ± 0.26*

63.1

5.01 ± 0.38

− 0.6

2.24 ± 0.31*

55.0

 Mass per unit area

g/m2

40 ± 10% [36–44]

41.12 ± 0.35

41.94 ± 0.20

− 2.0

41.46 ± 0.23

− 2.0

42.20 ± 0.28

− 2.6

PermaNet® 3.0

 Deltamethrin (side)

g/kg

2.1 ± 25% [1.58–2.63]

2.10

0.22*

89.5

2.09

0.5

0.17*

91.9

 Mass per unit area (side)

g/m2

40 ± 10% [36–44]

41.60

42.90

− 3.1

41.50

0.2

41.60

0

 Deltamethrin (roof)

g/kg

4.0 ± 25% [3.00–5.00]

3.82

3.71

2.9

3.89

− 1.8

3.61

5.5

 PBO (roof)

g/kg

25 ± 25% [18.75–31.25]

23.00

16.40*

28.7

19.80

13.9

16.20*

29.6

 Mass per unit area (roof)

g/m2

30 ± 10% [27–33]

38.60*

44.20*

− 14.5

37.40*

3.1

43.60*

− 14.5

PermaNet® 2.0

 Deltamethrin

g/kg

1.4 ± 25% [1.05 – 1.75]

1.34

0.08*

94.0

1.45

− 8.2

0.10*

92.5

 Mass per unit area

g/m2

40 ± 10% [36–44]

43.40

43.70

− 0.7

43.40

0.0

43.40

0.0

  1. Mean with asterisk (*) is within the target specification dose interval limits
  2. Mean without asterisk (*) is outside the target specification dose interval limits
  3. SE standard error of the mean, CI confidence interval