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. 2016 Mar 28;11(3):e0152578. doi: 10.1371/journal.pone.0152578

Table 1. Multivariate logistic regression model of bTB infection status according to network centrality indicators: model including the in-degree (complete model, AIC = 681).

Number of cases Number of controls Odds-ratio (95% CI) p-value
In-degree
[0–1] 58 89 Ref
]1–3] 49 64 1.0 (0.5–2.0) 0.57
]3–9] 87 74 1.7 (0.8–3.5) 0.10
]9–7 280] 102 69 2.4 (1.1–5.4) 0.01
Node betweenness
0 44 64 Ref
]0–1.28x10-6] 56 77 0.9 (0.4–2.1) 0.56
]1.28x10-6–1.03x10-5] 78 63 1.2 (0.5–2.8) 0.30
]1.03x10-5–0.0733] 118 92 1.4 (0.6–3.1) 0.22
Distance to the nearest infected herd (km)
0 133 21 Ref
]0–8.46] 89 57 0.2 (0.1–0.4) < 0.001
]8.46–24.7] 34 112 0.03 (0.01–0.05) < 0.001
]24.7–710] 40 106 0.01 (0.01–0.03) < 0.001
Herd size
[0–18.1] 58 84 Ref
]18.1–41.8] 77 64 2.5 (1.1–6.3) 0.04
]41.8–74.4] 75 68 2.3 (0.9–6.0) 0.08
]74.4–374] 86 80 1.8 (0.7–4.9) 0.25
Herd type
Beef 181 140 Ref
Other 66 77 0.9 (0.4–2.2) 0.79
Dairy 33 67 0.4 (0.2–0.7) 0.003
Mixed 16 12 1.1 (0.4–3.1) 0.89