Approximately 35 000 people experience homelessness in some form each night in Canada, with similar rates (approximately 1/200 individuals) among developed countries. Ten to twenty percent of those individuals are pet owners. Animal companionship provides a variety of mental and physical benefits to people who are living homeless or vulnerably housed, but many in the non-vulnerable sector, including veterinary professionals and animal welfare advocates, express concern for the health and welfare of these animals. We describe the demographics of a population of animals owned by individuals experiencing homelessness and housing vulnerability, and investigate animal and owner factors influencing body condition score and over-conditioning using data collected from Community Veterinary Outreach (CVO). Community Veterinary Outreach is a registered charity focused on improving the health and welfare of people and their pets who are experiencing homelessness and housing vulnerability. The organization provides free services to clients in ten Canadian communities. Data associated with 636 owners and 946 animals were collected during clinics held between April 2018 and March 2020, representing a total of 1124 visits. The population of dogs and cats seen by CVO was demographically similar to populations seen in general companion animal veterinary practice and were in similar health. For both species, the mean body condition score was 5.4/9, where an ideal score is five for cats and four to five for dogs, and 38 % of animals were considered over-conditioned (overweight/obese). Risk factor analysis demonstrated significant associations between being over-conditioned and pet age and the reason for the veterinary visit for cats, and pet age, the number of abnormal findings on physical exam, and a previous CVO visit for dogs. Pet age, sex-neuter status, disease of the oral cavity, and a previous CVO visit were significantly associated with body condition score in cats. Body condition score in dogs was associated with owner age, and with interactions between pet age and breed size group, and between sex-neuter status and owner-reported housing security. These findings suggest that animals owned by those experiencing homeless and housing vulnerability are generally in good health and similar factors influence body condition score and over-conditioning as animals seen in general companion animal veterinary practice. Further efforts to provide support to pet owners within these communities by veterinarians will help support the good health of this population.
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