Peer-reviewed veterinary case report
How being overweight affects lifespan in neutered pet dogs
By Salt, Carina et al.·Published in Journal of veterinary internal medicine·2019·WALTHAM Centre for Pet Nutrition, United Kingdom·View original on PubMed →
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Original publication title: Association between life span and body condition in neutered client-owned dogs.
- Species:
- dog
Plain-English summary
A study found that overweight middle-aged dogs tend to live shorter lives compared to those at a normal weight. Researchers looked at nearly 58,000 neutered dogs from various breeds and discovered that overweight dogs had a higher risk of death throughout their lives. For example, Yorkshire Terriers that were overweight lived an average of 13.7 years, while those at a normal weight lived about 16.2 years. This suggests that maintaining a healthy weight is important for your dog's longevity, especially as they age.
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Abstract
BACKGROUND: There is an association between overweight status and life span in kenneled dogs, but a similar association has not been reported for pet dogs. OBJECTIVES: To examine the effects of being overweight in middle age on the life span of neutered client-owned dogs. ANIMALS: Fifty-thousand seven-hundred eighty seven middle-aged neutered client-owned dogs attending a network of approximately 900 veterinary hospitals across North America. METHODS: Retrospective case-control study. For each of 12 breeds, groups of dogs aged between 6.5 and 8.5 years were identified as being in "overweight" or "normal" body condition. Within each breed and sex, differences in life span between dogs in normal body condition and overweight body condition in the 2 groups were then analyzed by Cox proportional hazards models. RESULTS: For all breeds, instantaneous risk of death for dogs in overweight body condition was greater than those in normal body condition throughout the age range studied, with hazard ratios ranging from 1.35 (99.79% confidence interval [CI] 1.05-1.73) for German Shepherd dog to 2.86 (99.79% CI 2.14-3.83) for Yorkshire Terrier. In all breeds, median life span was shorter in overweight compared with normal weight dogs, with the difference being greatest in Yorkshire Terriers (overweight: 13.7 years, 99.79% CI 13.3-14.2; normal: 16.2 years, 99.79% CI 15.7-16.5) and least in German Shepherd dogs (overweight: 12.1 years, 99.79% CI 11.8-12.4; normal: 12.5 years, 99.79% CI 12.2-12.9). CONCLUSIONS AND CLINICAL IMPORTANCE: Veterinary professionals should consider promoting healthy body condition for dogs, particularly from midlife onward.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/30548336/