Table 1.

Results of the final multivariable model, using ewe lamb predictors, showing the OR (95% CI) for risk of ewe lamb (7 to 8-months-old at breeding) mortality between set-stocking and weaning

Variable	Category	Odds ratio	95% CI	p-value
Cohort
	Farm A 2010-born	1	-	-
	Farm A 2011-born	1.812	1.512–2.171	< 0.001
	Farm B	0.582	0.442–0.766	< 0.001
	Farm C	0.561	0.316–0.996	0.048
Ewe lamb PD weight		0.978	0.961–0.995	0.013
Ewe lamb set-stocking BCS
	2.0	1	-	-
	2.5	0.589	0.405–0.855	0.005
	3.0	0.588	0.401–0.863	0.007
	3.5	0.565	0.348–0.918	0.021
	4.0	0.670	0.318–1.413	0.293