Table 4 Overall blood meal indices and host-preferences of malaria vectors from indoor and outdoor collections in Ahero and Iguhu, western Kenya

Ahero

 Host abundance in the area (%)

27.8

18.8

4.0

6.0

43.4

 An. arabensis

Blood index

2.5

73.1

2.5

3.4

0.6

FR (95% CI)

0.09 (0.05 to 0.13)

3.9 (3.7 to 4.1)*

0.6 (0.3 to 0.9)

0.5 (0.3 to 0.7)

0.01 (− 0.03 to 0.05)

 An. funestus

Blood index

62.0

25.4

0

4.2

0

FR (95% CI)

2.2 (1.8 to 2.6)*

1.4 (0.9 to 1.9)

0

0.7 (− 0.1 to 1.5)

0

Iguhu

 Host abundance in the area (%)

27.5

12.4

2.4

2.5

55.2

 An. gambiae s.s.

Blood index

50

28

0

2.0

0

FR (95% CI)

1.8 (1.3 to 2.3)*

2.3 (1.3 to 2.3)*

0

0.8 (− 0.7 to 2.3)

0

 An. funestus

Blood index

55.9

17.6

2.9

2.9

0

FR (95% CI)

2.0 (1.6 to 2.4)*

1.4 (0.4 to 2.4)

1.2 (− 1.2 to 3.6)

1.2 (− 1.1 to 3.5)

0