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Table 4 Indoor/outdoor biting ratios, percent of mosquitoes biting before 2200, percent of the total mosquito bites that occurs while people are indoors ( π i ) and percent of the total mosquitoes that occurs while people are sleeping ( π s )

From: Persistently high estimates of late night, indoor exposure to malaria vectors despite high coverage of insecticide treated nets

 

An. gambiae s.l.

An. gambiae

An. arabiensis

An. funestus

 

Miwani, 1989-90

Asembo, 2011

Asembo, 2011

Ahero, 1989-90

Asembo, 2009

Asembo, 2011

Ahero, 1989-90

Asembo, 2009

Asembo, 2011

Indoor/Outdoor ratio

1.9

1.2

1.6

3.1

1.2

1.7

12.0

2.3

2.1

% biting before 2100 indoors

1.1

6.6

2.1

2.2

18.2

18.9

0.8

6.5

4.2

% biting before 2200 indoors

2.6

11.2

3.5

5.3

33.3

24.2

1.6

10.8

6.2

% biting before 2100 outdoors

0.7

11.1

5.5

1.4

25.3

14.5

1.4

30.2

8.2

% biting before 2200 outdoors

5.6

18.2

6.6

4.1

33.3

19.9

2.9

40.1

12.3

Non-users of nets:

         

 Exposure indoors (πi)

0.99

0.96

0.98

0.99

0.95

0.97

0.99

0.97

0.98

 Exposure while asleep (πs)

0.98

0.90

0.95

0.97

0.80

0.84

0.98

0.91

0.94

Users of nets:

         

 Exposure indoors (πi)

0.96

0.72

0.83

0.97

0.80

0.87

0.99

0.78

0.86

 Exposure while asleep (πs)

0.72

0.36

0.52

0.64

0.20

0.25

0.77

0.40

0.50