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Table 4 Alpha-cypermethrin content during follow-up; IQR = Inter-Quartile Range (single sample per net)

From: Evidence for a useful life of more than three years for a polyester-based long-lasting insecticidal mosquito net in Western Uganda

Net type Time of follow-up
  6 months 12 months 24 months 36 months 42 months
LLIN      
   Number tested 38 37 37 36 21
   Median mg/m2 193.0 143.0 135.7 73.8 56.2
   IQR 166, 210 95, 177 81, 184 51, 105 17, 116
   % > 15 mg/m2 100% 100% 97% 94% 81%
   % > 3 mg/m2 100% 100% 97% 94% 95%
Conventional ITN      
   Number tested 40 40 8   
   Median mg/m2 13.9 7.5 1.6 Not done Not done
   IQR 2.3, 19.7 0.7, 13, 3 0.8, 7.4   
   % > 15 mg/m2 40% 18% 0%   
   % > 3 mg/m2 70% 53% 37%