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Table 7 Results from bio-assays using WHO cone test

From: Monitoring the durability of the long-lasting insecticidal nets MAGNet and Royal Sentry in three ecological zones of Mozambique

Variable12 months24 months36 months
InhambaneN = 30N = 30N = 30
Knock down 60 minutes
 Mean (95% CI)97.7 % (96.7-98.7)88.2 % (86.8-89.7)68.3 % (66.2-70.5)
 Median (IQR)98.5 % (97.5-99.0)89.3 % (86.5-90.5)68.4 % (67.9-69.7)
Mortality 24 hours
 Mean (95% CI)99.4 % (98.8-99.9)97.0 % (98.7-99.9)56.7 % (53.4-60.0)
 Median (IQR)100 % (99.0-100)98.0 % (95.5-98.5)55.0 % (52.5-58.5)
Optimal effectiveness
 Estimate (95% CI)100 % (–, –)100 % (–, –)3.3 % (0.4-21.0)
Minimal effectiveness
 Estimate (95% CI)100 % (–, –)100 % (–, –)93.3 % (76.0-98.4)
Variable12 months24 months36 months
TeteN = 30N = 25N = 27
Knock down 60 minutes
 Mean (95% CI)99.1 % (98.7-99.6)91.2 % (89.8-92.5)72.8 % (68.5-77.1)
 Median (IQR)100 % (99.0-100)89.5 % (87.5-95.5)71.5 % (65.7-79.5)
Mortality 24 hours
 Mean (95% CI)98.0 % (96.9-99.1)97.1 % (95.9-98.3)63.8 % (59.7-68.0)
 Median (IQR)99.0 % (98.0-100)98.0 % (96.0-99.0)58.7 % (56.4-67.8)
Optimal effectiveness
 Estimate (95% CI)100 % (–, –)100 % (–, –)11.1 % (3.8-28.4)
Minimal effectiveness
 Estimate (95% CI)100 % (–, –)100 % (–, –)100 % (–, –)
Variable12 months24 months36 months
NampulaN = 30N = 30N = 27
Knock down 60 minutes
 Mean (95% CI)98.2 % (97.1-99.3)90.8 % (89.8-91.9)66.5 % (59.8-73.2)
 Median (IQR)98.0 % (98.0-100)90.5 % (89.0-93.5)57.9 % (52.1-89.5)
Mortality 24 hours
 Mean (95% CI)98.8 % (98.4-99.1)97.0 % (96.3-97.7)68.3 % (60.9-75.8)
 Median (IQR)99.0 % (98.0-100)97.0 % (96.5-98.0)56.7 % (53.3-94.5)
Optimal effectiveness
 Estimate (95% CI)100 % (–, –)100 % (–, –)29.3 % (15.4-49.4)
Minimal effectiveness
 Estimate (95% CI)100 % (–, –)100 % (–, –)96.3 % (77.3-99.5)