Table 1. Models predicting Puumala virus-infection probability in bank voles and bank vole density index.
| Infection probability binomial | |||||||
|---|---|---|---|---|---|---|---|
| Fall |
Spring |
||||||
| OR | CI | P | OR | CI | P | ||
| Fixed Parts | |||||||
| Bank vole density | 1.04 | 1.02–1.06 | <0.001 | Bank vole density | 1.14 | 1.05–1.24 | 0.001 |
| Common shrew density | 0.79 | 0.67–0.94 | 0.007 | Common shrew density | 0.50 | 0.32–0.78 | 0.002 |
| Weight (g) | 1.31 | 1.27–1.35 | <0.001 | ||||
| Random Parts | |||||||
| Nplots | 54 | Nplots | 53 | ||||
| NYear | 11 | NYear | 10 | ||||
| ICCplots | 0.017 | ICCplots | 0.060 | ||||
| ICCYear | 0.015 | ICCYear | 0.203 | ||||
| Observations | 3330 | Observations | 839 | ||||
| Bank vole density poisson | |||||||
| Fixed Parts | |||||||
| Intercept | 3.79 | 2.35–6.14 | <0.001 | Intercept | 1.31 | 0.91–1.88 | <0.001 |
| Old forest | 1.34 | 0.97–1.87 | 0.08 | Old forest | 1.67 | 1.19–2.33 | 0.003 |
| Young forest | 0.94 | 0.70–1.26 | 0.69 | Young forest | 1.31 | 0.97–1.78 | 0.08 |
| Bank vole density (t-1) | 0.99 | 0.99–0.99 | <0.001 | Bank vole density (t-1) | 0.95 | 0.95–0.96 | <0.001 |
| Field vole density | 0.98 | 0.98–0.99 | <0.001 | Field vole density | 1.07 | 1.04–1.11 | <0.001 |
| Common shrew density | 1.07 | 1.06–1.07 | <0.001 | Common shrew density | 1.05 | 1.03–1.07 | <0.001 |
| Field vole density × Young forest | 1.03 | 1.02–1.04 | <0.001 | Field vole density × Young forest | 1.02 | 0.98–1.05 | 0.29 |
| Field vole density × Old forest | 1.01 | 1.01–1.02 | 0.001 | Field vole density × Old forest | 0.93 | 0.90–0.96 | <0.001 |
| Random Parts | |||||||
| Nplots | 50 | Nplots | 48 | ||||
| NYear | 11 | NYear | 11 | ||||
| ICCplots | 0.05 | ICCplots | 0.05 | ||||
| ICCYear | 0.13 | ICCYear | 0.06 | ||||
| Observations | 430 | Observations | 247 | ||||
The reference (intercept) is bank vole density index in meadows and clear-cuts. OR = odds ratio, CI = confidence interval, ICC = intra-class correlation coefficient.