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Table 1 Probit regression line parameters of An. stephensi exposed to DDT (4 %) and Lambda-cyhalothrin (0.05 %) in southeastern Iran

From: Insecticide susceptibility of Anopheles stephensi to DDT and current insecticides in an elimination area in Iran

Insecticides

A

B ± SE

LT50

95 % C.I.

(min)

LT90

95 % C.I.

(min)

χ 2

(df)

P-value

DDT (4 %)

-4.097

1.94 ± 0.246

130.25

597.35

5.23 (3)

> 0.05

Lambda-cyhalothrin (0.05 %)

-7.33

4.65 ± 1.096

37.71

71.12

16.44 (2)

< 0.05

  1. Abbreviations: A, intercept; B, slope; SE, standard error; LT50, 95 % CI, lethal time causing 50 % mortality and its 95 % confidence interval; LT90, 95 % CI, lethal time causing 90 % mortality and its 95 % confidence interval; χ 2, heterogeneity about the regression line; df, degrees of freedom
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Parasites & Vectors

ISSN: 1756-3305

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