Table 3. Multivariate logistic regression modeling results after stepwise selection comparing the hot zone and non-hot zone areas of HPAIV-confirmed outbreak farms based on 3km local spatial clustering analysis during 2015–2017, Taiwan.
| 2015 | 2016 | 2017 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Estimate | aOR※ | 95% CI$ | p-value | Estimate | aOR※ | 95% CI | p-value | Estimate | aOR※ | 95% CI | p-value | |
| nrwaterD | ||||||||||||
| medium | 0.87 | 2.38 | 0.90–6.18 | 0.07 | 1.71 | 5.51 | 1.81–17.90 | <0.01** | ||||
| high | 1.92 | 6.80 | 3.41–14.46 | <0.001*** | 2.22 | 9.17 | 3.73–26.20 | <0.001*** | ||||
| allrD | ||||||||||||
| medium | 1.47 | 4.35 | 1.34–19.50 | 0.03* | 1.62 | 5.07 | 1.28–33.74 | 0.04* | ||||
| high | 2.86 | 17.46 | 5.91–74.86 | <0.001*** | 2.11 | 8.23 | 2.12–54.86 | 0.01** | ||||
| PHI | 2.51 | 12.28 | 5.02–31.14 | <0.001*** | 2.10 | 8.13 | 0.65–71.99 | 0.07 | 1.02 | 2.79 | 1.00–7.69 | 0.05* |
| allcrop | 0.31 | 1.36 | 1.10–1.69 | <0.01** | 0.04 | 1.04 | 1.02–1.07 | <0.001*** | ||||
| rnativeD | 0.11 | 1.11 | 1.01–1.21 | 0.01* | 0.04 | 1.04 | 0.99–1.10 | 0.14 | ||||
| popD | ||||||||||||
| medium | 0.32 | 1.37 | 0.72–2.65 | 0.34 | -0.58 | 0.56 | 0.10–3.29 | 0.50 | -0.43 | 0.65 | 0.35–1.21 | 0.18 |
| high | -0.38 | 0.69 | 0.32–1.46 | 0.33 | -16.90 | 0.00 | NA | 0.99 | -2.02 | 0.13 | 0.04–0.37 | <0.001*** |
| butcherD | 0.42 | 1.52 | 0.89–2.60 | 0.12 | ||||||||
| allrice | -0.20 | 0.81 | 0.69–0.95 | 0.01* | 0.03 | 1.03 | 1.00–1.07 | 0.07 | ||||
※aOR: adjusted odds ratio
$CI: confidence interval.
*p<0.05
**p<0.01
***p<0.001.