Table 1 Predictors for traditional regions (TR) and economic divided regions (ED)
From: Quantifying predictors for the spatial diffusion of avian influenza virus in China
TR | East | North | Northeast | Northwest | South Central | Southwest | Â |
 Poultry dens | 14132.8 | 3766.9 | 3793.7 | 539.1 | 10115.2 | 1514.8 |  |
 Farm market | 29912 | 5601 | 8604 | 5823 | 17588 | 7067 |  |
 Forest Volume | 128885.7 | 17056.33 | 256744.1 | 87692.69 | 145843.83 | 563511.33 |  |
 Nature reserve | 4.28 | 6.34 | 13.22 | 15.06 | 5.66 | 16.33 |  |
 Temperature | 17 | 12.49 | 5.76 | 8.83 | 18.5 | 13.86 |  |
 Humidity | 69.83 | 52.28 | 66.22 | 55.85 | 74.47 | 65.75 |  |
 Water resource | 6222.31 | 201.61 | 1575.44 | 2366.17 | 7041.57 | 9751.36 |  |
 Human dens | 6688.97 | 1790.22 | 529.06 | 357.86 | 1974.9 | 485.01 |  |
 Transportation | 1363443.1 | 389900.12 | 326827.45 | 295949.22 | 1003544.8 | 296865.77 |  |
 Sample size | 119 | 14 | 16 | 16 | 134 | 21 |  |
ED | BER | Central | Northeast | Northwest | PRD | Southwest | YRD |
 Poultry dens | 7176.94 | 9959.04 | 3793.74 | 539.12 | 2751.7 | 2796.32 | 6845.58 |
 Farm market | 6638 | 12094 | 8604 | 5823 | 10653 | 8808 | 21975 |
 Forest Volume | 15751 | 129714 | 256744 | 87693 | 78620 | 610387 | 20826 |
 Nature reserve | 5.43 | 5.73 | 39.67 | 15.06 | 4.92 | 14.26 | 3.62 |
 Temperature | 13.72 | 15.76 | 17.28 | 8.83 | 20.92 | 15.37 | 16.65 |
 Humidity | 53.61 | 68.72 | 66.22 | 55.85 | 78.38 | 68.55 | 69.44 |
 Water resource | 317.88 | 5800.06 | 1575.44 | 2366.17 | 3527.56 | 11837.72 | 1733.64 |
 Human dens | 2231.64 | 2061.8 | 529.06 | 357.86 | 897.94 | 683.14 | 5064.57 |
 Transportation | 578895 | 1170352 | 326827 | 295949 | 340422 | 458222 | 505863 |
 Sample size | 30 | 98 | 16 | 16 | 65 | 49 | 46 |