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Table 2 Mortality of Anopheles gambiae s.l. following exposure to deltamethrin with and without pre-exposure to the synergist PBO (2013)

From: A village level cluster-randomized entomological evaluation of combination long-lasting insecticidal nets containing pyrethroid plus PBO synergist in Southern Mali

Village Number tested deltamethrin Number tested deltamethrin + PBO % mortality deltamethrin (95% CI) % mortality delta + PBO (95% CI) P value
Deltamethrin LLIN distributed
 Beko east 103 69 0 (0) 18 (10–30) 0.001
 Dalabani 101 102 50 (40–61) 71 (61–79) 0.003
 Berila 104 101 13 (7–20) 81 (72–88) 0.001
 Dierila 102 103 57 (47–67) 76 (66–84) 0.004
 Total 410 375 29 (24–33) 66 (61–71) 0.001
Deltamethrin + PBO LLIN distributed
 Beko west 103 69 0 (0) 17 (10–30) 0.001
 Farabacoura east 101 103 88 (80–94) 92 (85–97) 0.323
 Kola Djakada 104 99 20 (13–29) 47 (37–58) 0.001
 Tieblembougou 100 102 47 (37–57) 66 (56–75) 0.007
 Total 408 373 38 (33–33) 60 (55–65) 0.001