Table 2. Overview of themes covered in the questionnaire.

Overall theme	Details
Socio-demographic	• Gender • Postal code • Education • Household characteristics • Self-reported population-density of living area • Housing • Education • Employment status • Income • Professional work with dogs
Pet career	• Pets in childhood
About the dog	• Breed • Female/male • Neuter status • Still has dog • Where is the dog today? • Why do you not have it anymore? • Main responsibility for dog • Dog’s age when procured • Current age of dog • Purchase price • Pedigree
Welfare problems and veterinary assistance	• Welfare problems not requiring veterinary assistance • Welfare problems requiring veterinary assistance • Veterinary visits during last year (and for what)
Choice and procurement of dog	• Who in household got the idea to procure the dog? • Other influential persons or media in choice of dog • Who suggested the dog breed? • Influential persons or media in choice of breed • Who has most contact with dog in daily life? • Where was the dog procured? • Planning of procurement • Factors affecting choice of dog
Expectations of a good dog	• Easy to train • Easy to handle • Good around people/children/dogs • Appropriate levels of activity • Ensures that owner gets exercise
Daily life with and care of dog	• Hours that the dog is alone on weekdays • Professional dog walker • How do you take the dog outside? • How often do you or others take the dog for a walk? • Activities with the dog • How often do you or others train the dog? • Dog brought along on vacation • Dog brought along at work • Dog brought along at social visits
Expenses of dog	• Type of insurance • Expenses on veterinary care • Expenses on dog food • Expenses on toys, snacks etc.
LAPS questions	• Degree of attachment to dog
Other dog currently, earlier dogs, dogs in the future, other pets currently	• Other pets in household • Number of dogs in household • Earlier number of dogs • A new dog after the current dog • The same breed as current breed? • Other pets in the household