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Table 7 Final zero-inflated negative binomial model of the effects of PC. day and their interaction on adult lice counts (NliceM) (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
Negative binomial portion of model
 First PC 1.62 0.16 10.34 0 1.31–1.93
 Day 0.19 0.07 2.78 0.01 0.05–0.32
 First PC*Day -0.26 0.09 -2.82 0.01 -0.43– -0.08
Year
 2010 -0.71 0.13 -5.62 0 -0.96– -0.47
 2011 0.53 0.19 2.87 0 0.17–0.9
 2012 -0.98 0.14 -6.96 0 -1.26– -0.71
 2013 0.06 0.21 0.26 0.79 -0.37–0.48
 2014 -1.71 0.15 -11.62 0 -1.99– -1.42
 2015 0.33 0.2 1.68 0.09 -0.06–0.72
 Intercept 1.94 0.14 14.31 0 1.67–2.2
 Alpha 1.4 0.1    1.23–1.6
Logistic (inflation) portion of model
 Day -1.08 0.23 -4.68 0 -1.53– -0.63
 Intercept -2.92 0.38 -7.73 0 -3.66– -2.18
  1. Abbreviations: CI, confidence interval; SE, standard error