ArticleAnimals : an open access journal from MDPI2024
Investigating the Life Expectancy at Birth of Companion Dogs in Portugal Using Official National Registry Data.
Article in Animals : an open access journal from MDPI, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Epidemiology of Canine Cutaneous Histiocytoma: Insights From Age and Topographic Clustering.Veterinary dermatology · 2026Article
- Giant dog breeds under primary veterinary care in the UK: demography, common disorders and mortality.Companion animal health and genetics · 2026Article
- Genomic Variation and Population Structure of Portuguese Native Dog Breeds.Animal genetics · 2026Article
- Comparative epidemiological analysis of tumors of the digestive system in dogs and cats.Frontiers in veterinary science · 2025Article
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This study aimed to provide a comprehensive picture of the life expectancy of dogs in Portugal, focusing on the impact of diverse factors including breed, sex, size, and skull shape. The final dataset, gathering data from the national registry database, consisted of 278,116 dogs with confirmed deaths. The mean lifespan at birth for all the dogs was around 8.91 years, with the female dogs tended to have a similar lifespan to male dogs. The analysis of life expectancy at birth for the 20 most common non-Portuguese breeds and 10 Portuguese breeds revealed that Yorkshire Terriers had the highest life expectancy (10.89 years) and French Bulldogs the lowest (6.27 years). Size and cephalic index were found to be influential factors, with large brachycephalic breeds exhibiting shorter life expectancies and smaller, mesocephalic breeds experiencing longer lifespans. Additionally, the cephalic index had a more substantial impact on life expectancy compared to body size. These findings enhance the understanding of the factors influencing canine longevity and aid in developing strategies to improve the health and lifespan of companion dogs.
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Registered trials
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