|
Farm-level predictor
|
Predictor levelsa
|
ORb
|
lower 95% CIc
|
upper 95% CIc
|
p-value
|
|---|
|
Interceptd
|
-
|
0.608
|
0.264
|
1.401
|
0.243
|
|
House count/Bird count
|
hbSSe
|
1
|
-
|
-
|
-
|
| |
hbLS
|
0.161
|
0.041
|
0.636
|
0.009
|
| |
hbSL
|
0.507
|
0.207
|
1.246
|
0.139
|
| |
hbLL
|
0.317
|
0.141
|
0.711
|
0.005
|
|
Indoor/Free-range
|
ifYNe
|
1
|
-
|
-
|
-
|
| |
ifNN
|
1.810
|
0.275
|
11.927
|
0.537
|
| |
ifNY
|
12.185
|
3.815
|
38.913
|
<0.001
|
| |
ifYY
|
3.072
|
0.725
|
13.018
|
0.128
|
|
Integration status
|
Non-integratede
|
1
| | | |
| |
Integrated
|
0.681
|
0.307
|
1.512
|
0.345
|
|
Geographical location
|
Region: Northe
|
1
|
-
|
-
|
-
|
| |
Region: East
|
1.337
|
0.567
|
3.152
|
0.507
|
| |
Region: Scotland
|
0.324
|
0.038
|
2.752
|
0.302
|
| |
Region: Wales
|
0.126
|
0.012
|
1.329
|
0.085
|
| |
Region: West
|
0.321
|
0.135
|
0.761
|
0.010
|
|
Interaction terms
|
ifNN*Integrated
|
0.900f
|
0.075
|
10.778
|
0.934
|
| |
ifNY* Integrated
|
0.128
f
|
0.028
|
0.594
|
0.009
|
| |
ifYY* Integrated
|
0.965f
|
0.048
|
19.526
|
0.982
|
- aSee tables 3 and 4 for definitions; bOR = odds ratio; cCI = confidence interval of the OR; daverage odds in the baseline predictor groups; ereference-level category; fOR for farms in the baseline category of the other interacting variable; results significant at 5% error level are indicated in bold.
