Impact of operational effectiveness of long-lasting insecticidal nets (LLINs) on malaria transmission in pyrethroid-resistant areas

Table 3 Variation of sporozoitic index by locality and area

Localities/areas	Parameters	July-11	Aug-11	Sept-11	Oct-11	Nov-11	Dec-11	Total	CI (95%)
R ⁺ Localities
Itakpako	N tested	5	1	0	1	2	0	9
	Positive	0	0	0	1	0	0	1
	S (%)	0	0	-	100	0	-	11.11^a	[00.28-48.25]
Itassoumba	N tested	47	25	22	78	112	41	325
	Positive	0	11	2	12	10	3	38
	S (%)	0	44	9.09	15.38	8.93	7.32	11.69^a	[08.41-15.69]
Djohoukollé	N tested	2	1	0	4	3	0	10
	Positive	0	0	0	0	0	0	0
	S (%)	0	0	-	0	0	-	0^a	[00.00-30.90]
Ko-Koumolou	N tested	7	1	1	1	4	0	14
	Positive	3	0	0	0	1	0	4
	S (%)	42.86	0	0	0	25	-	28.57^a	[08.39-58.11]
	N tested	61	28	23	84	121	41	358
R ⁺ Area	Positive	3	11	2	13	11	3	43
	S (%)	4.92	39.29	8.70	15.48	9.09	7.32	12.01	[08.83-15.84]
R ⁺⁺⁺ Localities
Dagbao	N tested	1	0	1	2	15	1	20
	Positive	0	0	0	0	2	0	2
	S (%)	0	-	0	0	13.33	0	10^a	[01.23-31.70]
Ossomou 1	N tested	4	0	0	0	1	0	5
	Positive	0	0	0	0	0	0	0
	S (%)	0	-	-	-	0	-	0^a	[00.00-52.20]
Onigbolo	N tested	53	9	6	68	10	0	146
	Positive	1	0	0	13	0	0	14
	S (%)	1.89	0	0	19.12	0	-	9.59^a	[05.34-15.57]
Idéna 2	N tested	38	10	19	29	2	0	98
	Positive	1	0	5	8	1	0	15
	S (%)	2.63	0	26.32	27.59	50	-	15.31^a	[08.83-23.99]
	N tested	96	19	26	99	28	1	269
R ⁺⁺⁺ Area	Positive	2	0	5	21	3	0	31
	S (%)	2.08	0	19.23	21.21	10.71	0	11.52	[07.97-15.96]

S (%): sporozoitic index; ^aValues sharing a superscript letter are not significantly different (p > 0.05); ⁺: Low resistance; ⁺⁺⁺: High resistance.

ISSN: 1756-3305