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. 2020 Dec 2;8(4):723. doi: 10.3390/vaccines8040723

Table 2.

Descriptive statistics of variables in the training dataset (Goceano–Baronia) for (a) outcome 1 (PCR-positive wild boar detected in 2018–2019) and (b) for outcome 2 (young seropositive animals detected in 2019–2020). Data are presented as the frequency (%) or mean (standard deviation (SD)), median (I–III interquartile), and p-value.

(a) Variables Outcome 1 = 1
PCR-Positive
Detected in 2018–2019
(178 Grids)
Outcome 1 = 0
PCR-Positive
Not Detected in 2018–2019
(3775 Grids)
p-Value
PCR-positive 1
  Hunting season 2017–2018 1 (0–2) 0 (0–0) <0.0001
Adult seropositive 1
  Hunting season 2017–2018 6 (4–8) 0 (0–2) <0.0001
  Hunting season 2018–2019 3 (2–9) 0 (0–1) <0.0001
Young seropositive 1
  Hunting season 2017–2018 2 (1–3) 0 (0–0) <0.0001
  Hunting season 2018–2019 0 (0–0) 0 (0–0) NS
Altitude (mamsl) 700 (600–800) 500 (300–700) <0.0001
Road (km) 1.7 (0–2.6) 1.0 (0–2.4) 0.007
Forest (km2) 1.82 (0.81) 1.24 (0.82) <0.0001
Wild boar density 1,2 5 (0–7) 0 (0–5) <0.0001
Amount of protected forest (km2) 0 (0–1.3) 0 (0–0.7) <0.0001
(b) Variables Outcome 2 = 1
Young Seropositive Animal Detected in 2019–2020
(229 Grids)
Outcome 2 = 0
Young Seropositive Animal
Not Detected in 2019–2020
(3724 Grids)
p-Value
PCR-positive 1
  Hunting season 2017–2018 0 (0–0) 0 (0–0) NS
  Hunting season 2018–2019 0 (0–0) 0 (0–0) NS
Adult seropositive 1
  Hunting season 2017–2018 1 (0–4) 0 (0–2) <0.0001
  Hunting season 2018–2019 0 (0–1) 0 (0–1) NS
  Hunting season 2019–2020 0 (0–2) 0 (0–1) <0.0001
Young seropositive 1
  Hunting season 2017–2018 0 (0–0) 0 (0–1) NS
  Hunting season 2018–2019 0 (0–0) 0 (0–0) NS
Altitude (mamsl) 550 (450–700) 500 (300–700) 0.0026
Road (km) 0 (0–2.18) 1.1 (0–2.41) <0.0001
Forest (km2) 1.78 (0.69) 1.24 (0.82) <0.0001
Wild boar density 1,2 3 (0–5) 0 (0–5) <0.0001
Amount of protected forest (km2) 1.58 (0–4.2) 0 (0–0.05) <0.0001

1 Considering the features of wild boar imputed in the neighboring grids, the number of positive animals correspond to the number of grids covered by a 5 km2, for which the ASF-positive cases were imputed. 2 Wild boar density is based on the wild boar management plan [13].