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.