Table 1 Variables describing dog, victim, context and bite characteristics.

From: Online videos indicate human and dog behaviour preceding dog bites and the context in which bites occur

Variable

Categories

Dog size

Small- dogs that appear shorter than 30 cm at withers

Medium- dogs between 30 and 45 cm at withers

Big- dogs that appear above 45 cm at withers

Dog breed

A range of breeds were identified. When it was impossible to reasonably determine a breed, a dog was classed as a crossbreed. Breeds were identified with reference to the UK Kennel Club Breed Information Centre41

Victim’s age

Infant– based on visual characteristics, a young child that does not yet appear to be fully stable when walking, a child that is crawling or using elements of the environment when walking or standing up

Child/teenager– a child that is fully comfortable walking but does not appear to be fully mature

Adult– a mature person

Victim’s sex

Male

Female

Site of the bite

Limbs

Head or face

Other– e.g. torso

Multiple

Severity of the bite

Total score

Initiator of interaction

Dog

Victim

NA- not possible to discern

Handler’s sex

Male

Female

NA– not visible or not present

Location

Indoor

Outdoor