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Table 1 Times and knockdown ratios of Anopheles gambiae (s.l.) samples from Limbe, Tiko and Buea to insecticide susceptibility tests

From: Insecticide susceptibility status of Anopheles gambiae (s.l.) in South-West Cameroon four years after long-lasting insecticidal net mass distribution

Study site

Insecticides tested

n

KDT50 (min) (95% CI)

KDT95 (min)

Rtkd50

Status

Limbe

Deltamethrin (0.05%)

119

29.8 (28.4–31.1)

> 60

3.1

Resistant

Permethrin (0.75%)

78

> 60

> 60

un

Resistant

Tiko

Deltamethrin (0.05%)

84

46.2 (44.0–48.8)

> 60

4.9

Resistant

Permethrin (0.75%)

78

> 60

> 60

un

Resistant

Buea

Deltamethrin (0.05%)

147

36.5 (34.9–38.2)

> 60

3.8

Resistant

Permethrin (0.75%)

88

> 60

> 60

un

Resistant

  1. Abbreviations: n number tested, 95% CI 95% confidence interval, un undetermined, KDT50 time required for knocking down 50% of individuals, KDT95 time required for knocking down 50% of individuals, Rtkd50 time ratio required for knocking down 50% of individuals