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Table 2 Characterization of anopheline larvae breeding sites

From: Spatial distribution of Anopheles gambiae sensu lato larvae in the urban environment of Yaoundé, Cameroon

Characteristics Variables Number of BS sampled Number of BS with anopheline larvae (%) Odd ratio (95% CI) P-value
Proximity to living habitats (meter) ≤ 10 283 108 (38.2) 1 0.002
>  10 247 127 (51.4) 1.7 (1.2–2.4)
Size (m2) ≤ 1 228 138 (60.5) 1 <  0.0001
>  1 302 97 (32.1) 0.3 (0.2–0.4)
Depth (meters) <  1 465 223 (48.0) 1 <  0.0001
≥ 1 65 12 (18.5) 0.25 (0.1–0.5)
Permanency Temporal 397 207 (52.1) 1 <  0.0001
Semi-permanent 64 16 (25.0) 0.3 (0.2–0.5)
Permanent 69 12 (17.4) 0.2 (0.1–0.4) <  0.0001
Vegetation cover (%) 0–25 439 213 (48.5) 1 <  0.0001
25–75 65 13 (20.0) 0.3 (0.1–0.5)
75–100 26 6 (23.1) 0.3 (0.1–0.8) 0.016
Algae Present 110 40 (36.4) 1 0.06
Absent 420 195 (46.4) 1.5 (1.0–2.3)
Culicine larvae Present 115 38 (33.0) 1 0.3
Absent 414 158 (38.2) 1.3 (0.8–1.9)
Predators Present 99 22 (22.2) 1 <  0.0001
Absent 431 213 (49.4) 3.4 (0.2–5.7)
  1. BS Breeding site