Table 1.

Inclusion and exclusion criteria used for evaluation of research articles that examined the relationship between pet ownership and mental health.

Inclusion Criteria	Exclusion Criteria
Original research	Review article/not original research
Pet ownership (dog/cat)	Animal assisted intervention or therapy
Assessment of pet ownership on some classification of mental health	Working/service animal
Accessible through library system	Pet ownership other than dog or cat
Quantitative data reported	Outcome only in animal
Written in English	Not accessible through library system
	Only qualitative data reported
	Not written in English