Bionomics of the malaria vector Anopheles farauti in Temotu Province, Solomon Islands: issues for malaria elimination

Table 4 The proportion of host-seeking Anopheles farauti caught indoors and during sleeping hours as well as the proportion of contact occurring indoors (π_i) during 2008 and 2010 in Pala Village.

Month-Year	Proportion ± s.e.	n/N	Odds ratio [95% CI]	p value
*Endophagy*
Oct 2008	0.432 ± 0.010	1,017/2,355	1.00	NA
Apr 2010	0.223 ± 0.016	152/679	0.551 [0.426 - 0.712]	<0.0001
Dec 2010	0.357 ± 0.012	534/1,495	0.873 [0.700 - 1.087]	0.362
Overall influence of time		1,703/4,529	NA	0.0008
*Nocturnality*
Oct 2008	0.523 ± 0.014	1,103/2,355	1.00	NA
Apr 2010	0.546 ± 0.019	371/679	1.156 [0.983 - 1.360]	0.080
Dec 2010	0.378 ± 0.012	565/1,495	0.804 [0.697 - 0.928]	0.0028
Overall influence of time		2,039/4,529	NA	0.0027
*Proportion of indoor contact (π* _i )
Oct 2008	0.570 ± 0.059	602/1,070	1.00	NA
Apr 2010	0.367 ± 0.108	109/297	0.664 [0.509 - 0.865]	0.0024
Dec 2010	0.404 ± 0.063	295/731	0.727 [0.593 - 0.892]	0.0022
Overall influence of time		1,006/2,099	NA	0.0087

The proportions for each survey period are compared using generalized linear mixed models (GLMMs) with a binomial distribution, a categorical explanatory variable for study period and random factors for date and household; October 2008 formed the reference category for the GLMM.
Endophagy is the proportion of mosquitoes caught indoors; nocturnality is the proportion of mosquitoes caught during hours when most people are asleep; and indoor contact is the proportion of indoor and outdoor biting rates weighted throughout the night by the proportion of humans that are typically indoors or outdoors at each time period - see Methods for details.

ISSN: 1475-2875