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Table 3 Univariate model to estimate OR (CI 95%) for the association of environmental factors in larval habitats with the occurrence of Anopheles species

From: Larval habitats, species composition and distribution of malaria vectors in regions with autochthonous and imported malaria in Roraima state, Brazil

Variables   Anopheles species
An. albitarsis s.l. An. darlingi An. nuneztovari s.l. An. triannulatus s.l.
Habitat type Dam Ref Ref Ref Ref
  Fishpond 0.91 (0.12;4.46) 0 (0;136.02) - 40.7 (8.21;322.05)**
  Lake 1.15 (0.34;3.88) 2.21 (0.85;5.89) 0.7 (0.26;1.8)
  Pond
  Stream 0.58 (0.2;1.75) 6.85 (3.08;16.08)** 0.16 (0.06;0.38)** 0.46 (0.12;1.73)
Area (Sq m)  > 300 m Ref Ref Ref Ref
  150-300 m 3.83 (1.16;17.35)* 2.27 (1.12;4.67)* 0.48 (0.2;1.15) 0.13 (0.03;0.42)**
   < 150 m 3.82 (1.03;18.32) 1.07 (0.48;2.36) 1.11 (0.46;2.67) 0.29 (0.08;0.89)*
Water turbidity Transparent Ref Ref Ref Ref
  Turbid 0.24 (0.1;0.59)** 1.51 (0.75;3.08) 0.73 (0.33;1.68) -
Water current Moderate Ref Ref Ref Ref
  Stagnant 6.9 (1.3;127.59) 0.08 (0.02;0.23)** - 2.35 (0.71;10.67)
  Slow 6.51 (1.14;122.92) 0.12 (0.03;0.35)** - 0.6 (0.11;3.43)
Distance houses  > 15 m Ref Ref Ref Ref
  15-8 m 0.2 (0.03;0.74)* 4.19 (2.06;8.85)** 0.46 (0.19;1.04) 0.48 (0.15;1.33)
   < 8 m 1.74 (0.63;4.59) 2.51 (1.11;5.86)* 0.34 (0.09;0.96) 0.15 (0.01;0.82)
Sunlight exposure Partly shaded Ref Ref Ref Ref
  Shaded 2.04 (0.68;5.9) 2.42 (1.1;5.71)* - 1.86 (0.35;8.8)
  Full sun 2.93 (1.01;8.41)* 0.1 (0.03;0.28)** 0.78 (0.32;1.83) 15.67 (5.06;59.78)**
Debris Nothing Ref Ref Ref Ref
  Trunk/Roots/Leaves 0.44 (0.17;1.18) 12.58 (4.66;44.06)** 0.8 (0.35;1.96) 0.08 (0.03;0.21)**
  1. Statistically significant (*p < 0.05; and **p < 0.01; – small sample size