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Table 3 Multiple regression analysis for factors determining the presence of mosquito pupae

From: Identification and characterization of Anopheles spp. breeding habitats in the Korhogo area in northern Côte d’Ivoire: a study prior to a Bti-based larviciding intervention

Factor Levels Odds ratio 95% CI P-value
Season Rainy season 1   
Dry season 5.92 2.11–16.63 0.0007***
Habitat type Rice paddies 1   
Irrigation canals and drains 1.43 0.35–5.82 0.6151
Dams, ponds and puddles 0.25 0.08–0.77 0.0155*
Edges of rivers and streams 0.24 0.05–1.17 0.0775
Animal/human footprints 0.05 0–1.29 0.0704
Others 0.22 0.01–4.77 0.3376
General surroundings High-density housing 1   
Low-density housing 0.31 0.01–7.58 0.4715
Green area 0.03 0–0.70 0.0296*
Distance from human houses 100–500 m 1   
< 100 m 0.28 0.02–3.80 0.3406
> 500 m 0.25 0.10–0.66 0.0050**
Sunlight Sunny 1   
Shaded 0.10 0.01–1.18 0.0671
  1. *P < 0.05, **P < 0.01, ***P < 0.001
  2. Abbreviation: CI, confidence interval