Table 1.

Monthly 24−hour percentage mortality rates of An. gambiae s.s after exposure to etofenprox (Vectron 20 WP), bifenthrin (Bistar 10 WP) and lambda-cyhalothrin (Icon 10 CS) sprayed surfaces.

Month	[95% CI]			OR* [95% CI]	P*	[95% CI]	ORa [95% CI]	P a
	Control	Vectron  20 WP	Bistar 10 WP			Icon 10 CS
Dec-09	0 (30)[⋯−⋯]	100 (30)[⋯−⋯]	100 (28) [⋯−⋯]	[⋯−⋯]	1	100 (30) [⋯−⋯]	[⋯−⋯]	1
Jan-10	0 (30) [⋯−⋯]	100 (30) [⋯−⋯]	100 (34) [⋯−⋯]	[⋯−⋯]	1	100 (30) [⋯−⋯]	[⋯−⋯]	1
Feb-10	0 (30) [⋯−⋯]	100 (45) [⋯−⋯]	100 (45) [⋯−⋯]	[⋯−⋯]	1	100 (41) [⋯−⋯]	[⋯−⋯]	1
Mar-10	0 (25) [⋯−⋯]	100 (35) [⋯−⋯]	90 (30) [79.26−100.74]	[⋯−⋯]	0.468	100 (35) [⋯−⋯]	[⋯−⋯]	1
Apr-10	0 (30) [⋯−⋯]	100 (43) [⋯−⋯]	90 (30) [79.26−100.74]	[⋯−⋯]	0.468	100 (40) [⋯−⋯]	[⋯−⋯]	1
May-10	0 (25) [⋯−⋯]	86.7 (30) [74.51−98.83]	83.3 (30) [69.99−96.67]	0.77 [0.19−3.20]	0.794	100 (30) [⋯−⋯]	[⋯−⋯]	0.331
Jun-10	0 (25) [⋯−⋯]	76.7 (30) [61.54−91.80]	74.3 (35) [59.81−88.77]	0.88 [0.27−2.74]	0.845	88.7 (30) [77.33−100.01]	2.38 [0.58−9.76]	0.351
Jul-10	0 (20) [⋯−⋯]	75.8 (33) [61.14−90.38]	70.7 (41) [56.80−84.66]	0.77 [0.27−2.19]	0.673	79.8 (35) [66.39−93.03]	1.26 [0.40−3.95]	0.748
Aug-10	0 (20) [⋯−⋯]	73.8 (42) [60.51−87.11]	63.3 (30) [46.09−80.57]	0.61 [0.22−1.69]	0.37	77.0 (30) [61.94−92.06]	1.88 [0.40−3.55]	0.794

*Significance of change between Vectron 20 WP and Bistar 10 WP, *Significance of change between Vectron 20 WP and Icon 10 CS.