Skip to main content

Table 2 Blood-feeding results of wild, pyrethroid-resistant Anopheles gambiae sensu lato entering experimental huts in Covè, southern Benin

From: Does washing insecticide-treated nets 20 times for experimental hut evaluations provide a suitable proxy for their end-of-life performance under household conditions?

Net type

Net status

Mean hole index

N collected*

N blood-fed

% Blood-feeding* (95% CIs)

% Blood-feeding inhibition (95% CIs)

Untreated net (control)

138.0

882a

506

57.4a (54.1–60.7)

Interceptor®

New unwashed

138.0

753b

397

52.7b (49.1–56.3)

8.2 (3.1–13.3)

Washed 20 times

138.0

1522c

820

53.9a (51.4–56.4)

6.1 (1.4–10.8)

Field-aged 3 years

454.2

706de

206

29.2c (25.8–32.6)

49.1 (44.1–54.1)

PermaNet® 3.0

New unwashed

138.0

504de

146

29.0c (25.0–33.0)

49.5 (44.2–54.8)

Washed 20 times

138.0

1292cf

536

41.5d (38.8–44.2)

27.7 (22.9–32.5)

Field-aged 3 years

369.3

823b

203

24.7ce (21.8–27.6)

57.0 (52.1–61.9)

Royal Guard®

New unwashed

138.0

1201f

234

19.5e (17.3–21.7)

66.0 (61.4–70.6)

Washed 20 times

138.0

1492c

829

55.6a (53.1–58.1)

3.1 (-1.6–7.8)

Field-aged 3 years

500.2

974a

262

26.9c (24.1–29.7)

53.1 (48.3–57.9)

Interceptor® G2

New unwashed

138.0

828be

352

42.5d (39.1–45.9)

26.0 (21.0–31.0)

Washed 20 times

138.0

1141f

528

46.3d (43.4–49.2)

19.3 (14.4–24.2)

Field-aged 3 years

566.2

850be

314

36.9f (33.7–40.1)

35.7 (30.7–40.7)

  1. *Values in the same column bearing the same letter do not differ significantly at the 5% level, according to regression analysis. CIs = confidence intervals