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Table 1 Efficacy of 4 repellent formulations tested 4 and 5 hours after application during Study A in Guatemala

From: A low-cost repellent for malaria vectors in the Americas: results of two field trials in Guatemala and Peru

  

Hours post application

Treatment

 

4

5

Mean

95 % C.I.

Filler mix control

AM

115.52

100.48

108.00

55.13 – 96.39

 

WM

79.83

66.64

72.74a

 
 

% P

--

--

--

 

C15

AM

1.28

5.04

3.16

0.46 – 01.38

 

WM

0.64

1.40

0.96b

 
 

% P

98.89

94.98

97.07

 

T15

AM

1.36

1.44

1.40

00.43 – 01.17

 

WM

0.79

0.72

0.76b

 
 

% P

98.82

98.57

98.70

 

T20

AM

0.84

1.84

1.34

0.28 – 00.97

 

WM

0.43

0.77

0.59b

 
 

% P

99.27

98.17

98.76

 

15 % DEET

AM

6.08

11.72

8.90

2.68 – 06.38

 

WM

3.63

4.87

4.21c

 
 

% P

94.74

88.34

91.76

 
  1. AM = arithmetic mean mosquito landings per person hour.
  2. WM = William's mean mosquito landings per person hour. Means followed by different letters are significantly different.
  3. % P = Percentage protection i.e. 100 - ((mosquito landings on treatment ÷ mosquito landings on control) × 100).
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Malaria Journal

ISSN: 1475-2875

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