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. 2011 Mar 4;84(3):435–442. doi: 10.4269/ajtmh.2011.10-0571

Table 1.

Risk factors for plague in case and control villages

Risk factor Case huts (N = 78) Control huts (N = 80) OR 95% CI P value
Present (N) Percent* Present (N) Percent*
Peridomestic pig 41 (72) 57 28 (73) 38 2.31 1.09–4.13 0.025
Bedding material (other) 1 (64) 2 9 (61) 15 0.09 0.01–0.75 0.007
Distance to neighboring homestead 76 (76) 77 (77) 1.07 1.03–1.21 0.002
Elevation 78 (78) 80 (80) 1 1–1.01 0.014
Wetness 78 (78) 80 (80) 1.1 1.02–1.08 0.002
Brightness 78 (78) 80 (80) 0.98 0.96–1.0 0.031
Landsat ETM+ band 6 78 (78) 80 (80) 0.95 0.92–0.98 0.0004
*

Percentages were calculated only for nominal variables.