Table 3.
Outcome of logistic regression analysis showing association between presences of DNA of Francisella tularensis soil samples and its potential risk factors.
| B | S.E. | Wald | df | Sig. | Exp(B) | 95% C.I. for EXP(B) | ||
|---|---|---|---|---|---|---|---|---|
| Lower | Upper | |||||||
| Soluble salts | 0.244 | 0.103 | 5.606 | 1 | 0.018 | 1.276 | 1.043 | 1.562 |
| Ni | 1.068 | 0.662 | 2.606 | 1 | 0.106 | 2.910 | 0.795 | 10.644 |
| Mn | −0.310 | 0.133 | 5.483 | 1 | 0.019 | 0.733 | 0.565 | 0.951 |
| Zn | 1.594 | 0.850 | 3.511 | 1 | 0.061 | 4.922 | 0.929 | 26.064 |
| PC1 | 1.560 | 0.355 | 19.294 | 1 | 0.000 | 4.760 | 2.373 | 9.548 |
| PC3 | −1.030 | 0.298 | 11.934 | 1 | 0.001 | 0.357 | 0.199 | 0.640 |
| Distance from animal market | 0.534 | 0.975 | 9.318 | 1 | 0.05 | 0.57 | 0.30 | 1.07 |
| Water source (canal/stream/drain) | −2.051 | 2.762 | 13.956 | 1 | 0.004 | 1.19 | 1.19 | 3.09 |
| Animal density in a village | 0.927 | 0.175 | 8.59 | 1 | 0.07 | 1.56 | 0.97 | 2.43 |
| Number of households in a village | −1.823 | 0.690 | 3.489 | 1 | 0.002 | 0.38 | 0.20 | 0.71 |
| Domestic animal | 0.121 | 0.378 | 7.321 | 1 | 0.02 | 2.069 | 1.05 | 4.05 |
| Ground cover (vegetation) | −0.781 | 0.782 | 6.812 | 1 | 0.08 | 1.49 | 0.88 | 2.51 |
| Constant | −3.647 | 1.381 | 6.978 | 1 | 0.008 | 0.026 | ||