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Table 3 Comparison of nightly outdoor biting per person between houses with or without transfluthrin-treated chairs or ribbons (dry season)

From: Creating mosquito-free outdoor spaces using transfluthrin-treated chairs and ribbons

SettingsSpeciesTreatmentNightsnAdjusted-mean (95% CI)RR (95% CI)PP (95% CI)P-value
Outdoor peri-domestic spaceAnopheles arabiensisControl32105615.05 (12.29–18.44)10 
Two TF-chairs322733.61 (2.87–4.55)0.24 (0.19–0.29)0.76 (071–0.80)< 0.001
TF-treated ribbon322112.96 (2.33–3.75)0.19 (0.16–0.24)0.81 (0.75–0.84)< 0.001
Control2891014.86 (12.07–18.30)10 
One TF-treated chair282904.54 (3.60–5.73)0.30 (0.25–0.37)0.70 (0.62–0.75)< 0.001
Culex spp.Control3288910.52 (7.98–13.86)10 
Two TF-chairs324265.12 (3.84–6.83)0.48 (0.37–0.63)0.52 (0.36–0.63)< 0.001
TF-treated ribbon322993.43 (2.55–4.61)0.32 (0.24–0.43)0.68 (0.57–0.75)< 0.001
Control287449.99 (7.43–13.44)10 
One TF-treated chair283354.20 (3.07–5.75)0.42 (0.31–0.56)0.58 (0.43–0.68)< 0.001
Inside outdoor kitchen enclosureAnopheles arabiensisControl251521.17 (0.56–2.44)1  
TF-sisal ribbon251130.56 (0.26–1.22)0.57 (0.32–1.03)0.43 (− 0.03 to 0.67)0.065
Culex spp.Control252882.37 (1.35–4.17)10 
TF-sisal ribbon25890.56 (0.29–1.06)0.23 (0.12–0.43)0.77 (0.56–0.87)< 0.001
  1. n total number of mosquito collected, CI confidence interval, PP percentage protection, RR relative rate, TF transfluthrin, 1 and 0 references