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. 2021 Jul 21;58(6):2453–2466. doi: 10.1093/jme/tjab107

Table 3.

Final zero-inflated negative binomial regression models of environmental covariates and case counts of human granulocytic anaplasmosis (HGA) and human babesiosis

HGA Human babesiosis
IRR 95% CI SE z-value P IRR 95% CI SE z-value P
Negative Binomial Negative Binomial
 Intercept 0.00 0.00–0.00 0.61 −35.54 <0.001  Intercept 0.00 0.00–0.00 0.92 −19.23 <0.001
 Mean elevation (m)a 0.52 0.50–0.54 0.02 −31.89 <0.001  Mean elevation (m)a 0.37 0.34–0.40 0.04 −26.15 <0.001
 Percent forest coverb 1.49 1.45–1.52 0.01 35.65 <0.001  Percent forest coverb 1.56 1.52–1.60 0.01 33.40 <0.001
 Percent forest land cover changeb 10.11 7.38–13.85 0.16 14.42 <0.001  Percent forest land cover changeb 6.13 4.15–9.07 0.20 9.10 <0.001
 Percent urban land cover changeb 0.38 0.32–0.44 0.08 −11.54 <0.001  Mean winter preciptitation (cm)b 1.12 1.09–1.14 0.01 9.94 <0.001
 Mean winter preciptitation (cm)b 0.97 0.96–0.98 0.01 −4.04 <0.001  Mean winter minimum temperature (°C) 0.77 0.71–0.82 0.04 −7.14 <0.001
 Mean winter minimum temperature (°C) 0.54 0.51–0.57 0.02 −24.92 <0.001  Autocovariate 1.00 1.00–1.00 0.00 15.02 <0.001
 Autocovariate 1.00 1.00–1.00 0.00 26.05 <0.001
OR 95% CI SE z-value P OR 95% CI SE z-value P
Logit Logit
 Intercept 0.01 0.00–0.11 13.78 −3.42 0.001  Intercept 0.00 0.00–0.00 1.91 −9.26 <0.001
 Mean elevation (m)a 2.04 1.74–2.40 0.08 8.70 <0.001  Percent forest coverb 0.57 0.49–0.66 0.08 −7.36 <0.001
 Percent forest coverb 0.55 0.49–0.61 0.06 −10.41 <0.001  Percent urban land cover changeb 0.24 0.08–0.66 0.52 −2.74 0.006
 Percent urban land cover changeb 0.23 0.08–0.66 0.54 −2.73 0.006  Mean winter minimum temperature (°C) 0.39 0.32–0.48 0.10 −9.39 <0.001
 Mean winter minimum temperature (°C) 0.75 0.65–0.87 0.77 −3.72 <0.001  Autocovariate 1.00 1.00–1.00 0.00 −3.71 <0.001
 Autocovariate 1.00 1.00–1.00 0.00 −5.15 <0.001

aVariable divided by 100 for interpretability, one unit in table is equal to 100 units.

bVariable divided by 10 for interpretability, one unit in table is equal to 10 units.