Table 4 Regression coefficients, ORs and 95% CrI from the Bayesian spatial model (Model II) for human seropositivity for Echinococcus granulosus in three school-based surveys conducted in Xiji County in 2002–2003, 2006–2007 and 2012–2013

α₁ (Intercept study 1)

-0.23 (-1.79–1.27)

–

α₂ (Intercept study2)

0.94 (-0.74–2.56)

–

α₃ (Intercept study 3)

0.38 (-1.10–1.76)

–

Female^a

0.14 (0.02–0.26)

1.15 (1.01–1.29)

Age

-0.03 (-0.05– -0.01)

0.97 (0.95–0.99)

Summer precipitation same year (1 km)

0.01 (0.00–0.01)

1.01 (1.01–1.02)

EVI same year (1 km)

-5.12 × 10⁴ (-5.10 × 10⁴–4.91 × 10⁴)

0.99 (0.99–1.00)

Cultivated land same year (1 km)

3.24 × 10³ (-3.22 × 10³–9.94 × 10³)

1.00 (0.99–1.01)

Water bodies 5 years prior (1 km)

0.06 (0.02–0.10)

1.06 (1.02–1.10)

Forest same year (1 km)

0.01 (-6.95 × 10⁴–0.02)

1.00 (0.99–1.01)

NumP 5-year average (1 km)

-0.01 (-0.02– -0.01)

0.98 (0.97–0.99)

PD 5-year average (1 km)

1.08 (-0.23–2.83)

2.95 (0.79–16.89)

MPS 5-year average (1 km)

-1.04 (-1.76– -0.30)

0.35 (0.17–0.73)

Winter precipitation same year (5 km)

-0.07 (-0.09– -0.04)

0.93 (0.91–0.95)

Bareland/art surfaces same year (5 km)

-0.02 (-0.03– -0.01)

0.98 (0.96–0.99)

Forest same year (5 km)

0.02 (0.01–0.03)

1.02 (1.01–1.03)

Water bodies 5 years prior (5 km)

0.17 (0.01–0.32)

1.18 (1.01–1.38)

Herbaceous vegetation 5 years prior (1 km)

0.01 (-0.01–0.02)

1.01 (0.99–1.02)

Shrubland 5 years prior (5 km)

1.08 (0.36–1.82)

2.94 (1.44–6.23)

Cultivated land 5 years prior (5 km)

-0.01 (-0.02–0.01)

0.98 (0.97–1.10)

MPS 5 years prior (5 km)

-0.14 (-0.54–0.17)

0.86 (0.58–1.19)

Heterogeneity structured (survey 1)

8.40 × 10⁴ (1.63 × 10⁴–4.12 × 10³)

–

Heterogeneity structured (survey 2)

1.18 × 10³ (2.42 × 10⁴–4.42 × 10³)

–

Heterogeneity structured (survey 3)

7.18 × 10⁴ (1.75 × 10⁴ –2.79 × 10³)

–

ϕ ₁ (Decay of spatial correlation survey 1)

0.61 (0.04–1.31)

–

ϕ ₂ (Decay of spatial correlation survey 2)

0.19 (0.03–0.56)

–

ϕ ₃ (Decay of spatial correlation survey 3)

0.17 (0.02–0.50)

–

DIC

6197

–