Bio-efficacy of deltamethrin based durable wall lining against wild populations of Anopheles gambiae s.l. in Northern Tanzania

Table 4 Contact bioassays and mortality response for different surfaces with different treatments

Month	Surface		Number died	% Mortality	Lower 95% CI	Upper 95% CI	F	P value
Jan-12	Unsprayed (control)	800	0	0	0	0
	Sprayed	800	800	100	0	0	151.18	<0.0001
	DL	800	800	100	0	0	151.18	<0.0001
Feb-12	Unsprayed (control)	800	6	0.75	0.55	0.97
	Sprayed	800	796	99.5	99	100	195.03	<0.0001
	DL	800	800	100	0	0	197.02	<0.0001
Mar-12	Unsprayed (control)	800	0	0	0	0
	Sprayed	800	798	99.75	99.21	100	199	<0.0001
	DL	800	800	100	0	0	200	<0.0001
Apr-12	Unsprayed (control)	800	0	0	0	0
	Sprayed	800	693	86.63	74.33	98.82	152.83	<0.0001
	DL	800	800	100	0	0	200	<0.0001
May-12	Unsprayed (control)	800	3	0.38	0.24	0.5
	Sprayed	800	638	79.75	68.65	90.82	131.17	<0.0001
	DL	800	800	100	0	0	198.49	<0.0001
Jun-12	Unsprayed (control)	800	8	1	0.61	1.39
	Sprayed	800	624	78	71.2	87.2	124.05	<0.0001
	DL	800	799	99.88	99.8	100	195.56	<0.0001

ISSN: 1756-0500