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Table 7 Results from bio-assays using WHO cone test

From: Monitoring the physical and insecticidal durability of the long-lasting insecticidal net DawaPlus® 2.0 in three States in Nigeria

Variable12 months24 months36 months
N = 30N = 30N = 30
Zamfara
 Knock down 60 min
  Mean (95% CI)46.8% (39.5–54.1)66.1% (60.0–72.3)45.2% (40.9–49.6)
  Median (IQR)50.0% (35.0–64.0)69.0% (56.0–80.0)43.0% (34.0–56.0)
 Mortality 24 h
  Mean (95% CI)64.4% (57.8–71.2)99.6% (99.5–100)98.3% (96.6–100)
  Median (IQR)70.0% (60.0–80.0)100% (100–100)100% (100–100)
 Optimal effectiveness
  Estimate (95% CI)30.0% (16.2–48.7)100% (–)96.7% (77.7–99.6)
 Minimal effectiveness
  Estimate (95% CI)80.0% (63.4–90.2)100% (–)100% (–)
Ebonyi
 Knock down 60 min
  Mean (95% CI)58.3% (50.7–65.9)52.0% (46.2–57.8)42.3% (37.4–47.1)
  Median (IQR)60.0% (34.0–80.0)50.0% (40.0–66.0)40.0% (34.0–48.0)
 Mortality 24 h
  Mean (95% CI)65.0% (60.3–69.7)99.2% (98.4–99.9)97.3% (95.2–99.5)
  Median (IQR)64.0% (60.0–74.0)100% (100–100)100% (100–100)
 Optimal effectiveness
  Estimate (95% CI)16.7% (7.3–33.6)100% (–)96.7% (77.7–99.6)
 Minimal effectiveness
  Estimate (95% CI)90.0% (72.7–96.8)100% (–)100% (–)
Oyo
 Knock down 60 min
  Mean (95% CI)53.4% (47.9–58.9)47.5% (41.3–53.6)n.a
  Median (IQR)54.0% (42.0–66.0)44.0% (36.0–58.0) 
 Mortality 24 h
  Mean (95% CI)99.7% (99.2–100)98.5% (97.0–99.9)n.a
  Median (IQR)100% (100–100)100% (100–100) 
 Optimal effectiveness
  Estimate (95% CI)100% (–)100% (–)n.a
 Minimal effectiveness
  Estimate (95% CI)100% (–)100% (–)n.a