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Table 4
Description of general characteristics of the reduced sample of cases and controls where devices were used for training recall or chasing problems
Variable	Categories	Number	%
Distribution of questionnaire	Veterinary practices	137	24
	Dog shows or related events	265	46
	Agricultural or horse shows	34	6
	Dog walkers	95	16
	Pet shops or other shops	29	5
	Other or missing information	19	3
Gender of owner	Female	505	87
	Male	72	12
Age category of owners	Under 25 years	37	6
	25-40 years	135	23
	41-60 years	284	49
	Over 60 years	120	21
Owner location	Scotland or Wales	6	1
	North East	11	2
	North West	23	4
	East Midlands	49	9
	West Midlands	24	4
	East	62	11
	South East	80	14
	London	20	4
	South West	220	38
	Unknown	83	15
Owner report of experience	Professional dog trainer	24	4
	Experienced dog owner and trainer	202	35
	Experienced dog owner but new at training	248	43
	New or inexperienced dog owner	105	18
Origin of dog	Breeder	314	54
	Rescue centre	119	21
	Friend or relative	22	4
	Other (incl pet shops)	62	11
	Owner also breeder	61	11
Sex of dog	Males	286	49
Sex of dog	Females	292	50
Neuter status of dog	Neutered	286	49
Neuter status of dog	Entire	285	49
Breed type (split by UK Kennel Club categories)	Toy	21	4
	Terriers	60	10
	Utility	31	5
	Hounds	29	5
	Gundogs	184	32
	Working	39	7
	Pastoral	89	15
	Crossbreeds	124	21

Blackwell et al. BMC Veterinary Research 2012 8:93 doi:10.1186/1746-6148-8-93

Table 4