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Table 2 Model selection results of the anti-Borrelia IgG response of the Scandinavian brown bears

From: Serological signature of tick-borne pathogens in Scandinavian brown bears over two decades

Rank Fixed effects structure df LL AICc Δ AICc Weight 1 Weight 2
1 OD ~ S + A + Y + S:A + S:Y 14 −442.26 912.53 0.00 0.54 0.54
2 OD ~ S + A + Y + S:A 13 −444.28 914.55 2.02 0.20 0.74
3 OD ~ S + A + S:A 12 −445.36 914.73 2.20 0.18 0.92
4 OD ~ S + A + Y + S:A + S:Y + A:Y + S:A:Y 22 −437.00 917.99 5.46 0.04 0.96
5 OD ~ S + A + Y + S:Y 10 −449.27 918.53 6.00 0.03 0.99
6 OD ~ S + A + Y + S:A + S:Y + A:Y 18 −442.01 920.02 7.49 0.01 1.00
7 OD ~ S + A + Y + S:A + A:Y 17 −444.04 922.09 9.56 0.00 1.00
8 OD ~ S + A + Y 9 −452.70 923.40 10.87 0.00 1.00
9 OD ~ S + A 8 −453.79 923.58 11.05 0.00 1.00
10 OD ~ S + A + Y + S:Y + A:Y 14 −448.95 925.89 13.36 0.00 1.00
11 OD ~ A + Y 8 −455.03 926.06 13.53 0.00 1.00
12 OD ~ A 7 −456.27 926.55 14.02 0.00 1.00
13 OD ~ S + A + Y + A:Y 13 −452.29 930.58 18.05 0.00 1.00
14 OD ~ A + Y + A:Y 12 −454.52 933.04 20.51 0.00 1.00
15 OD ~ S + Y + S:Y 6 −576.20 1164.4 251.87 0.00 1.00
16 OD ~ S + Y 5 −581.93 1173.86 261.33 0.00 1.00
17 OD ~ Y 4 −583.91 1175.81 263.28 0.00 1.00
18 OD ~ S 4 −586.54 1181.07 268.54 0.00 1.00
19 OD ~ 1 3 −588.91 1183.81 271.28 0.00 1.00
  1. The log-transformed optical density (OD) is a measure of the anti-Borrelia IgG response and was modelled as a linear mixed effects model. Fixed factors included study area (S), age group (A), and capture year (Y), and the random factor was bear identity. Shown for each model are: the model rank (Rank), the structure of the fixed effects, the degrees of freedom (df), the log-likelihood (LL), the corrected Akaike information criterion (AICc), the difference in AICc value from the top model (Δ AICc), the model weight (Weight 1), and the cumulative weight (Weight 2)