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Table 4 The crude odds ratios of relevant risk factors for fur animal epidemic necrotic pyoderma (FENP)

From: Questionnaire survey of detrimental fur animal epidemic necrotic pyoderma in Finland

Risk factor Case farms (n = 92) Control farms (n = 134) OR (95% CI)
Exposed (n) Non-exposed (n) Exposed (n) Non-exposed (n)
All farms
 Farm type
  Mixed farm vs mink farm 51 33 16 24 2.3 (1.1–5.0)
  Mixed farm vs fox farm 51 33 25 74 4.6 (2.4–8.6)
 Purchases
  Domestic purchases 86 2 118 15 3.7 (0.8–17.1)
  All imports combined 32 56 24 96 2.3 (1.2–4.3)
  Imports from Denmark 17 71 3 117 9.3 (2.6–33.0)
  Imports from Poland 10 78 2 118 7.6 (1.6–35.5)
 Drinking system
  Cup 22 68 58 72 0.4 (0.2–0.7)
  Nipple 67 23 66 64 2.8 (1.6–5.1)
Farms with mink (including mixed farms)
 Fence around the mink premises 38 19 21 28 2.7 (1.2–5.9)
 Access by birds to shelter buildings 25 34 10 38 2.8 (1.2–6.7)
 Access by wild animals to shelter buildings 13 42 2 43 6.7 (1.4–31.3)
 Size of the farm: >750 vs ≤750 breeder mink 39 13 19 24 3.8 (1.6–9.0)
 Hay as bedding material 9 48 18 31 0.3 (0.1–0.8)
 Pre-weaning diarrhea 31 30 15 34 2.3 (1.1–5.2)
 Plasmacytosis 13 48 23 26 0.3 (0.1–0.7)
Farms with foxes (including mixed farms)
 Access by wild animals to shelter buildings 22 44 18 75 2.1 (1.0–4.3)
 Size of the farm: >320 vs ≤320 breeder foxes 44 20 44 54 2.7 (1.4–5.2)
Mixed farms
 Size of the farm large vs small (based on the most numerous species) 26 18 13 19 3.0 (1.2–7.9)
 Fence around mink premises 33 9 12 13 4.0 (1.4–11.7)
  1. Number (n) and crude odds ratios (OR, with only one factor in the logistic regression model at a time) for the most prominent risk factors for FENP