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Table 3 Univariate analysis of the fixed effects associated with N. caninum antibody S/P ratio, (Dataset B – 26,437 samples, 13,942 cattle, 114 herds, only cattle ≥ 2 years old for regular visits in the 4-year study period).

From: A four year longitudinal sero-epidemiology study of Neospora caninumin adult cattle from 114 cattle herds in south west England: Associations with age, herd and dam-offspring pairs

   All data Cattle with date of birth omitted data
Variable Category Coef SEb P value Coef SEb P value
Triplet codea Reactive       
  Proactive -0.122 0.051 0.02 -0.084 0.049 0.09
  Survey -0.097 0.051 0.06 -0.074 0.049 0.13
Restocked No       
  Yes -0.043 0.052 0.41 -0.026 0.050 0.60
Farm location Area A       
  Area B -0.153 0.045 < 0.01 -0.136 0.043 < 0.01
  Area C -0.086 0.076 0.26 -0.035 0.074 0.64
Log (herd size)   -0.085 0.059 0.15 -0.079 0.059 0.18
Cattle sex Female       
  Male -0.075 0.052 0.15 -0.065 0.056 0.25
Replacement cattle Homebred       
  Purchased 0.078 0.018 < 0.01 0.078 0.018 < 0.01
Mean herd seroprevalence < 10%       
  ≥ 10% 0.294 0.031 < 0.01 0.274 0.030 < 0.01
Age (years) 2       
  3 0.022 0.014 < 0.01 0.021 0.014 0.13
  4 0.047 0.014 < 0.01 0.045 0.014 < 0.01
  5 0.065 0.015 < 0.01 0.063 0.015 < 0.01
  6 0.083 0.016 < 0.01 0.077 0.016 < 0.01
  7 0.092 0.017 < 0.01 0.080 0.018 < 0.01
  8 0.100 0.019 < 0.01 0.079 0.021 < 0.01
  9 0.102 0.021 < 0.01 0.065 0.032 0.03
  ≥ 10 0.081 0.022 < 0.01 0.078 0.109 0.47
  1. aPart of the Randomised Badger Culling Trial (RBCT) in the south west region with three treatments – reactive proactive or no culling of badgers (survey only)
  2. b Standard Error