Table 4 Logistic regression analysis of risk factors for avian influenza virus in backyard poultry
Factors | P-value | OR | 95% CI |
|---|---|---|---|
Types of live poultry | 0.037 | Â | Â |
 1 |  | 1 |  |
 2 | 0.527 | 1.576 | 0.385–6.445 |
 3 | 0.012 | 9.381 | 1.631–53.950 |
Number of live poultry | 0.042 | 3.920 | 1.050–14.631 |
Type of raising area | 0.847 | 0.883 | 0.248–3.138 |
Type of raising | 0.071 | 3.360 | 0.901–12.529 |
Sanitary condition of premises | 0.058 | Â | Â |
 Poor |  | 1 |  |
 Average | 0.017 | 0.186 | 0.047–0.742 |
 Well | 0.999 | 0.000 | – |
Flocks vaccination history | 0.317 | 2.993 | 0.350–25.584 |
Sick or dead flock | 0.403 | 0.321 | 0.022–4.608 |
Poultry source | 0.671 | 1.598 | 0.184–13.879 |
Constant | 0.159 | 0.004 | Â |