Table 3.
Summary of model performances in explaining the probability of infection (glm, family = binomial) and intensity [glm, family = Gamma(link = ‘identity’)] of each helminth species
| Models for infection |
Models for intensity of infection |
|||||||
|---|---|---|---|---|---|---|---|---|
| Parasite | Models | AICc | ΔAICc | wi | Models | AICc | ΔAICc | wi |
| Strongyloides sp. | i. y~ Burrows + Sewer + Sex + Age(d) + Smi + Age2(d) + Sex:Sewer | 80·99 | 0·00 | 0·54 | i. log2(y) ~ Season + Cumulative rain + Ground + Burrows + Sex + Age (d) + Sex:Ground + Sex:Age(d) | 963·62 | 0·00 | 0·57 |
| ii. y ~ Burrows + Sewer + Sex + Age(d) + Age2(d) + Sex:Sewer | 82·27 | 1·28 | 0·28 | ii. log2(y) ~ Season + Cumulative rain + Ground + Sex + Age(d) + Sex:Ground + Sex:Age(d) | 964·56 | 0·94 | 0·36 | |
| iii. y ~ Burrows + Sewer + Sex + Age(d) + Smi + Sex:Sewer | 83·25 | 2·27 | 0·17 | iii. log2(y) ~ Season + Cumulative rain + Ground + Burrows + Sex + Sex: Ground | 967·88 | 4·26 | 0·07 | |
| iv. y ~ 1 | 89·63 | 8·64 | 0·01 | iv. log2(y) ~ 1 | 1021·37 | 57·75 | 0·00 | |
| Nippostrongylus brasiliensis | i. y ~ Season + Trails + Sex + Age(d) + Age2(d) + Sex:Trails + Sex:Age(d) | 368·59 | 0·00 | 0·79 | i. log2(y) ~ Season + Fat presence + Interval-sampling-analysis | 412·92 | 0·00 | 0·51 |
| ii. y ~ Season + Trails + Sex + Age(d) + Sex:Trails + Sex:Age(d) | 371·24 | 2·65 | 0·21 | ii. log2(y) ~ Fat presence + Interval-sampling-analysis | 413·42 | 0·50 | 0·40 | |
| iii. y ~ Season + Trails + Sex + Sex:Trails | 378·95 | 10·37 | 0·00 | iii. log2(y) ~ Season + Interval-sampling-analysis | 416·44 | 3·52 | 0·09 | |
| iv. y ~ 1 | 403·50 | 34·91 | 0·00 | iv. log2(y) ~ 1 | 434·99 | 22·08 | 0·00 | |
| Angiostrongylus cantonensis | i. y ~ Valley + Sex + Maturity + Smi + Sex:Valley | 361·09 | 0 | 0·69 | i. log2(y) ~ Cumulative rain + Tree + Burrows + Sex +Sex:Cumulative rain | 497·13 | 0·00 | 0·36 |
| ii. y ~ Valley + Sex + Maturity + Sex:Valley | 362·72 | 1·628 | 0–31 | ii. log2(y) ~ Cumulative rain + Tree + Burrows + Sex + Smi + Sex: Cumulative rain | 497·20 | 0·07 | 0·35 | |
| iii. y ~ Valley + Sex + Sex:Valley | 383·85 | 22·76 | 0 | iii. log2(y) ~ Cumulative rain + Tree (n) + Sex + Sex:Cumulative rain | 497·65 | 0·52 | 0·28 | |
| iv. y ~ 1 | 392·67 | 31·58 | 0 | iv. log2(y) ~ 1 | 502·96 | 5·84 | 0·02 | |
| Hymenolepis spp. | i. y ~ Valley | 226·20 | 0·00 | 0·99 | ||||
| ii. y ~ 1 | 240·74 | 14·54 | 0·00 | |||||
| Trichuridae | i. y ~ Valley + Sex + Maturity + Sex:Maturity | 172·19 | 0·00 | 0·55 | ||||
| ii. y ~ Valley | 172·73 | 0·54 | 0·42 | |||||
| iii. y ~ 1 | 178·32 | 6·13 | 0·03 | |||||
| Gongylonema neoplasticum | i.y ~1 | 143·51 | 0·00 | 0·62 | ||||
| ii. y ~ Smi + Sex + Sex:Smi | 144·46 | 0·95 | 0·38 | |||||
AICc, corrected Akaike’s information criterion; ΔAICc, difference between AICc score and lowest AICc score; wi, Akaike’s model weight.
The most parsimonious models are shown in bold.