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. 2018 May 17;7(2):187–195. doi: 10.1016/j.ijppaw.2018.05.002

Table 1.

Results of the generalized linear mixed-effects models (GLMM) and general linear mixed-effects models (LME) of best fit for nematode infection prevalence and mean intensity, respectively, from rabbits sampled seasonally in New Zealand (NZ) and Scotland before the arrival of RHDV. All comparisons are made against the intercept of the first level of each factor, i.e. NZ for location and Spring for season. Test statistic (z values) are marked as: ****P < 0.001, ***P < 0.01, **P < 0.05.

Parasite species Fixed effects
Prevalence Models
Mean Intensity Models
Factor Level Estim. SE z value Pr (>|z|) Estim. SE t value P value
Trichostrongylus
retortaeformis
Location NZ vs. Scotland −0.58 0.09 −6.18 <0.0001
Season Spring vs. Summer 0.66 0.2 3.22 0.0012*** 0.26 0.12 2.12 0.03
Spring vs. Autumn 0.67 0.23 2.86 0.0042*** 0.21 0.14 1.56 0.12
Spring vs. Winter 1.3 0.27 4.87 1.1 × 10−6**** 0.5 0.14 3.59 0.0003
Graphidium
strigosum
Location NZ vs. Scotland 1.2 0.15 7.75 8.9 × 10−15**** −1.11 0.15 −7.34 <0.0001
Season Spring vs. Summer −0.92 0.19 −4.74 2.1 × 10−6**** −0.73 0.21 −3.54 0.0004
Spring vs. Autumn 0.45 0.21 2.16 0.031** 0.03 0.19 0.14 0.88
Spring vs. Winter 0.85 0.22 3.84 0.0001**** 0.91 0.19 4.83 <0.0001
Passalurus
ambiguus
Location NZ vs. Scotland −2.08 0.29 −7.01 2.32 × 10−12**** −2.33 0.26 −8.93 <0.0001
Season Spring vs. Summer −0.08 0.32 −0.24 0.81 0.73 0.36 2.0 0.0455
Spring vs. Autumn 0.7 0.33 2.11 0.035** 0.98 0.32 3.11 0.0021
Spring vs. Winter 1.33 0.38 3.46 0.0005 **** 1.33 0.31 4.22 <0.0001
Location:Season Scotland:Summer −1.56 0.48 −3.26 0.001 ***
Scotland:Autumn −0.48 0.44 −1.09 0.27
Scotland:Winter −1.23 0.48 −2.56 0.01**