Table 3. Comparison of significant environmental factors correlated to HPAI H5N1 outbreaks in poultry (this study) and wild birds (adapted from [4]) in Europe, as maintained in the final multiple logistic regression model.
Type | Poultry | B | OR | 95% CIs OR | P-value | AIC ± SD | AUC ± SD | |
Model | <0.001 | 283±18 | 0.81±0.03 | |||||
Intercept | −0.16 | 0.462 | ||||||
Physical | PrecNov | −0.05 | 0.955 | 0.936 | 0.973 | <0.001 | ||
environmental | TmaxNov | 0.03 | 1.027 | 1.017 | 1.037 | <0.001 | ||
factors | STmaxNov | 0.45 | 1.586 | 1.228 | 2.049 | 0.025 | ||
interaction | Popdenglwd | 0.26 | 1.319 | 1.08 | 1.629 | 0.042 | ||
Wild birds | ||||||||
Model | <0.001 | 638±25 | 0.81±0.02 | |||||
Intercept | −10.9 | <0.001 | ||||||
Physical | Dem | −0 | 0.999 | 0.998 | 0.999 | 0.016 | ||
environmental | PrecJan | −0.04 | 0.963 | 0.950 | 0.976 | <0.001 | ||
factors | TminJan | 0.03 | 1.026 | 1.018 | 1.034 | <0.001 | ||
NDVIMar | 50.6 | 1.170 | 0.059 | 23.630 | <0.001 | |||
SNDVIMar | −56.4 | 0.408 | 0.307 | 0.543 | <0.001 | |||
NDVIDec | 6.1 | 1319 | 100 | 17685 | <0.001 |
OR - odds ratios, 95% CIs OR −95% confidence intervals of odds ratios, AIC - Akaike’s information criterion, AUC - the area under the Receiver Operating Characteristic curve, Prec - precipitation, Tmax - maximum temperature, Tmin - minimum temperature, S - square term, Popdenglwd - human population density combined with the proximity to lakes or wetlands.