Indoor and outdoor resting behavior in response to
insecticide-treated and untreated bed net.
The proportion of resistant females caught resting indoors in the hut
when a volunteer slept under a treated bed net trap was lower
46.2%compared to susceptible females 53.8% (OR=1.4; 95% CI=
[1.23-1.62]; P<0.0001). The susceptible females were 1.4
more likely to avoid biting a host sleeping under a treated bed net and
resort to search for a host elsewhere or rest away from the
intervention, unlike the resistant females. When untreated bed net was
in place, there was no difference observed between the proportions of
resistant females and susceptible females caught resting indoors in the
hut (OR=1.1; 95% CI=[0.97-1.28]; P=0.121).The proportion of
susceptible females caught resting outdoors when a treated net was used,
was higher 64.5% compared to resistant females 35.4%. The susceptible
population was 2.3 times more likely to stay outdoors away from the
treated bed net (OR=2.25; 95% CI= [1.7-2.9]; P<0.0001;
Fig. 4).
For wild population the proportion of females caught resting indoor or
outdoor when a treated bed net was present was 52.03% vs 52.2%
respectively compared to the untreated bed net trap (47.9% vs 47.8%
respectively, Fig. 4). Even though the proportion resting indoor or
outdoor was high when the treated bed net was present, there was no
significant difference (Indoor: OR=1.2; 95% CI=[0.94-1.54];
P=0.139; outdoor: OR=1.11; 95% CI=[0.72-1.71])