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

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

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

  1. 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.
  2. 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.