Evaluation of Long-lasting insecticidal nets (LLINs) for malaria control in an endemic area in Brazil

Parasites & Vectors

Table 2 Analysis of variance of the average mortality rate observed for each insecticide as a function of the number of days post-installation of long-lasting insecticide nets

Insecticide	Days after LLIN installation	n	Mean mortality rate, % (± SD)	P
Permethrin	Day 1^a	15	84.1 (7.1)
	Day 90	23	99.1 (3.3)	0.061
	Day 180	10	60.8 (21.4)	0.007*
	Day 540	15	93.9 (9.6)	0.554
	Day 630	17	76.1 (12.6)	0.712
	Day 720	16	44.8 (30.5)	< 0.001*
Alfacypermethrin	Day 1^a	15	79.1 (11.5)
	Day 90	7	100.0 (0)	0.103
	Day 180	10	89.0 (26.0)	0.981
	Day 540	15	94.7 (7.2)	0.150
	Day 630	15	78.4 (15.0)	1.000
	Day 720	14	73.2 (26.8)	0.944

Study period: March 2012–February 2014
SD Standard deviation
*Indicates a significant difference at P ≤ 0.05 in mean mortality rate between permethrin- and alfacypermethrin-impregnated LLINs at that time point
^aReference
n = number of mosquitoes net evaluated

ISSN: 1756-3305