Table 4.

Experimental hut summary results for wild free-flying An. Arabiensis during the 9 month efficacy trial

Insecticide (Wall) substrate)	Outcome measure	Time after spraying (months)
		April	May	June	July	August	September	October	December
Delta SC-PE 25 mg/m2 (Mud)	Number Collected	76	88	69	252	791	439	225	30
	% Mortality	28	34	13	75	66	59	56	37
	95% CI	19-39	25-45	7-23	70-80	62-69	54-63	49-62	22-55
	% Blood-fed	71	64	36	19	21	31	39	53
	% Blood-feeding inhibition	19	35	60	68	54	58	45	45
Delta WG 25 mg/m2 (Mud)	Number Collected	65	88	32	338	850	397	234	30
	% Mortality	40	43	19	72	67	71	63	23
	95% CI	29-52	33-54	9-36	67-77	64-70	66-75	56-69	12-42
	% Blood-fed	77	52	34	17	25	21	27	80
	% Blood-feeding inhibition	13	47	62	71	46	71	62	17
DDT WP 2000 mg/m2 (Mud)	Number Collected	20	48	102	348	850	444	174	23
	% Mortality	40	29	30	66	70	60	59	44
	95% CI	21-62	18-43	22-40	61-71	67-73	56-65	52-66	25-64
	% Blood-fed	60	42	37	20	29	33	33	61
	% Blood-feeding inhibition	32	57	58	66	37	55	54	36
Delta SC-PE 25 mg/m2 (Concrete)	Number Collected	83	94	103	343	937	476	200	57
	% Mortality	48	29	26	80	68	65	67	28
	95% CI	38-59	21-39	19-36	75-84	65-71	60-69	60-73	18-41
	% Blood-fed	75	67	53	20	22	31	36	39
	% Blood-feeding inhibition	15	32	40	66	52	58	49	59
Delta WG 25 mg/m2 (Concrete)	Number Collected	75	65	44	323	947	383	272	26
	% Mortality	65	37	34	83	62	70	62	39
	95% CI	54-75	26-49	22-49	79-87	59-65	65-74	56-67	22-58
	% Blood-fed	64	49	48	17	19	22	33	23
	% Blood-feeding inhibition	27	50	46	71	59	70	54	76
DDT WP 2000 mg/m2 (Concrete)	Number Collected	69	83	109	371	1105	454	233	26
	% Mortality	42	29	34	70	61	62	51	27
	95% CI	31-54	20-40	26-43	66-75	58-64	57-66	44-57	13-47
	% Blood-fed	59	61	47	18	21	28	34	54
	% Blood-feeding inhibition	33	38	47	69	54	62	52	44
Untreated (Mud)	Number Collected	50	57	47	161	255	111	86	23
	% Mortality	16	4	6	17	11	2	1	4
	95% CI	8-29	1-13	2-18	12-24	7-15	1-7	0-8	1-25
	% Blood-fed	88	98	89	59	46	73	71	96