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Table 2 Summary of cone and tunnel test results

From: Assessing the impact of the addition of pyriproxyfen on the durability of permethrin-treated bed nets in Burkina Faso: a compound-randomized controlled trial

 

Net type

Time after net distribution (months)

1

6

12

18

24

30

36

Cone test

PPF-permethrin

100% (24/24)

100% (23/23)

95.4% (21/22)

76.47% (13/17)

0% (0/14)

37.5% (6/16)

20.0%(4/20)

LLIN

100% (24/24)

90.0% (18/20)

72.7% (16/22)

57.14% (8/14)

0% (0/20)

25.0% (4/16)

16.6% (2/12)

Tunnel test

PPF-permethrin

N/A

N/A

0% (0/1)

25% (1/4)

21.4% (3/14)

30.0% (3/10)

25% (4/16)

LLIN

N/A

100% (2/2)

0% (0/5)

0% (0/6)

5.55% (1/18)

0% (1/12)

50% (5/10)

Overalla

PPF-permethrin

100% (24/24)

100% (23/23)

95.4% (21/22)

82.35% (14/17)

21.4% (3/14)

56.25% (9/16)

66.66% (8/12)

LLIN

100% (24/24)

100% (20/20)

72.7% (16/22)

64.3% (8/14)

5% (1/20)

31.25% (5/16)

58.33% (7/12)

  1. WHO cut off criteria for cone bioassay is ≥ 95% knock down and/or ≥ 80% mortality. For tunnel tests cut off criteria is ≥ 80% mortality and/or ≥ 90% blood feeding inhibition
  2. Italic indicates pass, bolditalic indicates fail
  3. N/A No nets tested
  4. aNets meet overall WHO criteria for a given timepoint if 80% of nets pass either cone or tunnel tests