Table 2.

Kisumu and OCEAC Laboratory strains of Anopheles gambiae s.s. response to permethrin EC freshly treated nets.

Variables	Nets	Kisumu strain		OC-Lab strain		X2	p
		No	%	No	%
Kd rates	Untreated	50	0	50	0
	Permethrin EC (500 mg/m2)	100	100	100	97	3.04	0.08
Mt rates	Untreated	50	0	50	2
	Permethrin EC (500 mg/m2)	100	89	100	68	13.06	<0.001

Kd: Knockdown rates 60 minutes post-exposure, Mt: Mortality rates 24 hours post-exposure, No: number of tested mosquitoes, p: Probability at 5%.