Table 1.

List of ‘Generation Pup’ questionnaires used for the present study and the corresponding age that dogs reached when owners received each questionnaire

‘Generation Pup’ questionnaires	Puppy age at time of questionnaire completion
‘About Me’ and ‘About My Household’	Before puppy registration to study
‘About My Puppy’	At point of registration onto the study
‘Settling In’ (SI)*	1–3 weeks after acquisition, or until 12 weeks of age, whichever was sooner
12-week*	12 weeks (84 days) to 15.5 weeks (108 days)
16-week*	16 weeks (112 days) to 19.5 weeks (136 days)
SI/12-week combined*	Between age 12 weeks (84 days) and 15.5 weeks (108 days).
SI/12-week/16-week combined*	Between 15.5 weeks (109 days) and 16 weeks (112 days)
Six-month	6 months (180 days) to 6 months + 3.5 weeks (204 days)

^*Questionnaires from which ‘≤ 16 weeks’ time-point data were extracted. Data from the latest time-point available for each question were used.