Wash-resistance of pirimiphos-methyl insecticide treatments of window screens and eave baffles for killing indoor-feeding malaria vector mosquitoes: an experimental hut trial, South East of Zambia

Table 2 Mortality rates of Anopheles arabiensis in experimental huts

	Replication cycle 1 (WSEBs not washed)			Replication cycle 2 (WSEBs washed 10 times)			Replication cycle 3 (WSEBs washed 20 times)
Treatments	Mortality [CI]^a	OR^b [CI]^a	P	Mortality [CI]^a	OR^b [CI]^a	P	Mortality [CI]^a	OR^b [CI]^a	P
Anopheles arabiensis
LLINs only	0.58 [0.40,0.74]	1.00 NA^c	NA^c	0.57 [0.32,0.80]	1.00 NA^c	NA^c	0.50 [0.27,0.80]	1.00 NA^c	NA^c
LLINs + PM-IRS	0.96 [0.91,0.98]	16.3 [6.2,42.8]	< 0.001	0.95 [0.87,0.98]	15.3 [3.6,64.3]	< 0.001	0.95 [0.86,0.98]	18.8 [4.3,77.5]	< 0.001
LLINs + PM-WSEBs	0.99 [0.96,1.00]	70.0 [21.8224]	< 0.001	0.98 [0.94,1.00]	41.7 [19.8,87.6]	< 0.001	0.94 [0.79,0.98]	15.3 [4.5,51.5]	< 0.001

Occupied by volunteers sleeping under long-lasting insecticidal nets (LLINs) treated with deltamethrin (a pyrethroid) as used alone, supplemented with indoor residual spraying (IRS) of pirimiphos-methyl (PM, an organophosphate), or supplemented with window screens and eave baffles (WSEBs) treated with PM plus a binding agent
^a95% Confidence interval
^bOdds ratio
^cNot applicable

ISSN: 1475-2875