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Table 6 Final negative binomial model of the effects of production cylce year (PC), day and their interaction on attached lice counts (NliceA) (Dataset 2). 2016 omitted due to collinearity

From: Parasitic sea louse infestations on wild sea trout: separating the roles of fish farms and temperature

  Coefficient SE Z P > Z 95% CI
First PC 2.15 0.16 13.36 0 1.83–2.46
Day 0.06 0.07 0.88 0.38 -0.07–0.19
PC*Day 0.56 0.09 5.85 0 0.37–0.74
Year
 2010 1.49 0.14 -10.5 0 -1.77– -1.21
 2011 0.22 0.2 1.1 0.27 -0.17–0.62
 2012 0.21 0.15 -1.43 0.15 -0.51–0.08
 2013 0.04 0.21 0.19 0.85 -0.37–0.45
 2014 0.14 0.16 0.83 0.41 -0.19–0.46
 2015 1.81 0.2 8.91 0 1.41–2.2
Intercept 1.13 0.13 8.6 0 0.87–1.39
  1. Abbreviations: CI, confidence interval; SE, standard error