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. 2012 Oct 5;7(10):e46310. doi: 10.1371/journal.pone.0046310

Table 5. Resource hypothesis model formulation and coefficient estimates for molecular case series study design.

Model Parameter Coefficient estimate Standard error Z value P value
Salmonella DICE = β12|CS|+β3|DS|+β4 ED+β5|ΔEVI|+β6|HS|+β7|DW|+β8|WB|+β9H+β10Pig+β11|DP| Adjusted r2 = 3% (Intercept) 55.55 0.25 224.19 0.001
|Condition score| (|CS|) −2.99 0.32 −9.48 <0.001
|Dist. to streams| (|DS|) −0.22 0.16 −1.33 0.098
Euclidean distance (ED) −0.02 0.00 −4.53 <0.001
|EVI decline| (|ΔEVI|) 0.00 0.00 −0.46 0.303
|Herd Size| (|HS|) −0.02 0.01 −1.31 0.107
|Wallaby density| (|DW|) −3.20 0.40 −8.07 <0.001
|water bodies| (|WB|) 0.07 0.06 1.29 0.088
Same herd (Indicator: 0 = false) (H) 1.14 0.24 4.71 0.001
Same pig (Indicator: 0 = False) (Pig) 44.45 2.00 22.27 <0.001
|Wild pig density| (|DP|) 16.41 2.67 6.15 <0.001

A fixed effect (indicator) covariate for herd and the distance between two pigs were included to control clustering and spatial autocorrelation.