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. 2009 Feb 10;2:11. doi: 10.1186/1756-3305-2-11

Table 7.

Comparison of models describing the per host net egg output

Population Model type Model Test LRS d.f. p-value AIC
Baseline Negative binomial 1 - - - - 24679.09
2 1 vs. 2 50.87 1 <0.0001 24630.21
3 2 vs. 3 8.35 1 0.0039 24623.86
4 3 vs. 4 0.02 1 0.89 24625.84

Zero-inflated negative binomial 1I - - - - 23990.51
2I 1 vs. 2 26.89 1 <0.0001 23965.62
3I 2 vs. 3 0.41 1 0.52 23967.20
4I 3 vs. 4 6.04 1 0.014 23963.17
2 vs. 4 6.45 2 0.049

1st re-infection Negative binomial 1 - - - - 14404.20
2 1 vs. 2 44.42 1 <0.0001 14361.78
3 2 vs. 3 4.06 1 0.044 14359.72
4 3 vs. 4 4.50 1 0.025 14356.72

Zero-inflated negative binomial 1I - - - - 14043.52
2I 1 vs. 2 24.52 1 <0.0001 14020.97
3I 2 vs. 3 0.25 1 0.62 14022.73
4I 3 vs. 4 0.68 1 0.41 14024.04

2nd re-infection Negative binomial 1 - - - - 11050.10
2 1 vs. 2 24.11 1 <0.0001 11027.99
3 2 vs. 3 5.93 1 0.015 11024.06
4 3 vs. 4 1.72 1 0.19 11024.33

Zero-inflated negative binomial 1I - - - - 10715.26
2I 1 vs. 2 7.24 1 0.0071 10710.02
3I 2 vs. 3 0.22 1 0.65 10711.81
4I 3 vs. 4 0.56 1 0.46 10713.26

The goodness-of-fit of all NB and ZINB models fitted to the data assessed by the LRS and AIC. denotes the best-fit of each model type in each population. Model equations are given in Table 4.

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