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Table 2 Bivariate results for proportions of water bodies located in well drained versus poorly drained grid cells by environmental variables collected about the water body (n = 29).

From: Characterization of potential larval habitats for Anophelesmosquitoes in relation to urban land-use in Malindi, Kenya

Variables Well drained (n = 21) Poorly drained (n = 8) χ2 P-value O.R. C.I.
Land-use (% residential or commercial) 20 (95.2) 6 (75.0) 0.055 0.814 6.7 0.51, 86.9
Size (% small habitats) 6 (28.6) 4 (50.0) 1.177 0.278 0.4 0.75, 2.14
Nature (% human-made) 20 (95.2) 6 (75.0) **    
Shade (% some shade) 12 (57.1) 6 (75.0) **    
Pollution (% polluted) 9 (42.9) 5 (62.5) 0.895 0.344 0.45 0.09, 2.4
Substrate (% cement or plastic) 16 (76.2) 6 (75.0) 0.004 0.947 1.07 0.16, 7.06
Permanency (% perm. or semi-perm.) 3 (14.3) 2 (25.0) 0.466 0.495 0.5 0.07, 3.75
Animals present (%) 6 (28.6) 6 (75.0) 5.148 0.023 0.13 0.02, 0.86
Nearest house (% < 20 meters) 21 (100) 5 (62.5) **    
  1. *d.f. = 1, **Insufficient variability in the data