Table 1. Summary statistics of the fixed effect explanatory variables.

Variable	Count	Median	Mean	IQR (1st-3rd)
breakdown_length		188	225.6	140–260
herd_size		93	141.2	42–190
outbreak_reactors		1	2.84	1–2
total_reactors		3	7.66	2–8
year_patch_prev		8.85	9.89	6.01–12.55
mean_patch_prev		10.18	10.73	7.83–13.24
MLVA_richness		1	1.25	1–1
main_sett		0.74	0.77	0.56–0.92
outwards_moves_year_before		52	98.22	23–106
inwards_moves_year_before		9	59.78	1–42
LRS	2,209
milk_licence	2,360
associated_herds	1,501
previous_breakdown	2,061
herd_type beef	3,617
herd_type dairy	2,275
herd_type other	98