Table 2 Temephos sensitivity of St. aegypti larvae and resistance ratio (RR) in the study populations

LC₁₀

0.0005

0.0005

0.0004

0.0005

0.0003

LC₅₀

0.0031

0.0035

0.0037

0.0041

0.0016

LC₉₉

0.086

0.11

0.24

0.2

0.044

χ² (p)

11.1 (0.004)

12.6 (0.002)

8.7 (0.01)

7.8 (0.02)

0.4 (0.5)

Slope

1.60 ± 0.1

1.54 ± 0.1

1.28 ± 0.1

1.38 ± 0.1

1.60 ± 0.3

r

0.98

0.97

0.98

0.98

0.99

g

0.67

0.77

0.73

0.60

0.10

RR₅₀ (95% CI)/ RR₉₉ (95% CI)

1.9 (1.6-2.2)/ 1.9 (1.6-2.1)

2.2 (1.9-2.4)/ 2.5 (2.2-2.8)

2.3 (2.0-2.6)/ 5.4 (4.9-5.9)

2.6 (2.3-2.9)/ 4.5 (4.1-5.0)

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