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Table 1 Susceptibility of Ae. aegypt i and Ae. albopictu s larvae to Bti

From: Insecticide susceptibility of Aedes aegypti and Aedes albopictus in Central Africa

Sample N Regression line Pearson χ2 goodness of fit LC50 (95% CI) LC95 (95% CI) RR50 RR95
Ae. aegypti        
Garoua 493 Y = 5.67X + 4.15 0.69 0.18 (0.03-0.45) 0.36 (0.30-0.45) 1.00 1.13
Bertoua 498 Y = 3.84X + 2.13 0.62 0.27 (0.19-0.39) 0.75 (0.20-2.77) 1.50 2.34
Yaoundé 252 Y = 8.77X + 5.76 0.27 0.22 (0.20-0.44) 0.34 (0.26-0.44) 1.22 1.06
Bafia 500 Y = 2.99X + 1.75 0.54 0.25 (0.21-0.31) 0.91 (0.17-4.89) 1.39 2.84
Libreville 500 Y = 6.06X + 4.28 0.21 0.19 (0.09-0.24) 0.36 (0.32-0.46) 1.06 1.13
Ae. albopictus        
Yaoundé 500 Y = 1.91X - 0.04 0.64 0.19 (0.17-0.21) 0.69 (0.26-1.85) 1.05 1.06
Bertoua 477 Y = 16.31X + 9.32 0.94 0.27 (0.25-0.28) 0.34 (0.32-0.40) 1.50 1.13
Buea 375 Y = 3.08X + 2.13 0.51 0.20 (0.10-0.39) 0.69 (0.26-1.85) 1.11 1.06
Reference strain 496 Y = 7.04X + 5.11 0.40 0.18 (0.11-0.22) 0.32 (0.29-0.36)   
  1. N: Total number of mosquitoes assayed; 50% and 95% lethal concentrations, LC50 and LC95, are expressed in mg/liter; 95%CI: 95% confidence interval; p > 0.05 suggests a well-fitting model, P < 0.05 suggests an invalid model population.