Table 1 Summary statistics of dependent and explanatory variables for a model explaining the spatio-temporal variation of tick-borne encephalitis in southern Germany from 2001-2008
From: Determinants of tick-borne encephalitis in counties of southern Germany, 2001-2008
Dependent variable | Mean | SD | Min. | Max. |
|---|---|---|---|---|
Number of reported TBE infections in humans | 1.95 | 3.26 | 0.00 | 39.00 |
County population size (in units of 10,000) | 16.54 | 14.10 | 2.86 | 131.20 |
Explanatory variables | ||||
Proportion of forest cover/county | ||||
Broad-leafed forest | 0.05 | 0.06 | 0 | 0.28 |
Coniferous forest | 0.18 | 0.13 | 0 | 0.56 |
Mixed forest cover | 0.09 | 0.07 | 0 | 0.36 |
Forest fragmentation | ||||
Connectivity (largest forest patch/entire forest cover) | 0.19 | 0.14 | 0 | 0.74 |
Hunting bag in previous year per km 2 hunting area | ||||
Red deer Cervus elaphus | 0.09 | 0.30 | 0 | 6.77 |
Roe deer Capreolus capreolus | 4.46 | 1.30 | 0.76 | 10.10 |
Red fox Vulpes vulpes | 2.17 | 0.91 | 0 | 17.86 |
Climatic variables | ||||
Spring warming: Temperature increase from February-April (°C) corrected for mean January temperature | 9.25 | 1.39 | 6.07 | 12.59 |
Unexplained spatial variation | ||||
Total human TBE cases in all neighbouring counties per inhabitants of those counties | 0.00013 | 0.00014 | 0 | 0.00091 |
Unexplained temporal variation | ||||
Each year was entered as a fixed factor in the model | -/- | -/- | -/- | -/- |