|
Variablea
|
Ticks
|
Lice
|
|---|
|
OR
|
95% CI
|
P
b
|
OR
|
95% CI
|
P
b
|
|---|
|
Age (months)
|
|
1 to 12
|
5.99
|
2.48–14.51
|
0.001
|
Baseline
| | |
|
13 to 24
|
1.05
|
0.42–2.64
|
0.922
|
3.83
|
1.83–8.01
|
0.001
|
|
> 24
|
Baseline
| | |
2.07
|
0.95–4.53
|
0.069
|
|
Farm site
|
|
Dry land
|
16.68
|
2.26–123.27
|
0.006
|
5.72
|
2.55–12.83
|
0.001
|
|
Floodplain
|
Baseline
| | |
Baseline
| | |
|
Origin
|
|
Bought
|
3.61
|
1.42–9.15
|
0.007
|
–
|
–
| |
|
Born on farm
|
Baseline
| | |
–
|
–
| |
- aOnly factors that remained significantly associated in the final model (P < 0.05) are included
- bLogit binary regression analysis with Backward stepwise elimination in a hierarchic model. Hosmer-Lemeshow goodness-of-fit test: P = 0.233 (ticks), P = 0.480 (lice)
- Abbreviations: OR, odds ratio; CI, confidence interval
