Peer-reviewed veterinary case report
Hip dysplasia and breed affect 10-year survival in large dogs
By Krontveit, Randi I et al.·Published in Veterinary journal (London, England : 1997)·2012·Department of Companion Animal Clinical Sciences·View original on PubMed →
PetCaseFinder translated the abstract of this peer-reviewed paper into plain English so pet owners can read it. We do not publish original research — every detail traces back to the citation above. How we work →
Original publication title: The effect of radiological hip dysplasia and breed on survival in a prospective cohort study of four large dog breeds followed over a 10 year period.
- Species:
- dog
Plain-English summary
A study followed 501 large dogs, including Newfoundlands, Labrador Retrievers, Leonbergers, and Irish Wolfhounds, to see how hip and elbow dysplasia affected their lifespan. After ten years, 60% of Labrador Retrievers were still alive, compared to only 28.8% of Newfoundlands, 16.1% of Leonbergers, and just 6.4% of Irish Wolfhounds. The research found that hip dysplasia and breed significantly influenced survival rates, with dogs in urban areas living longer than those in rural settings. Elbow dysplasia did not appear to impact overall survival.
People also search for: Labrador Retriever lifespan · hip dysplasia in dogs · Irish Wolfhound health issues · Newfoundland dog survival rates
Abstract
The aim of the study was to measure the effect of radiological hip and elbow dysplasia status and breed on overall survival in a cohort of four large dog breeds in Norway. Privately owned dogs of the Newfoundland (NF), Labrador Retriever (LR), Leonberger (LEO), and Irish Wolfhound (IW) breeds were followed prospectively from birth to 10 years of age. The age of death/euthanasia was registered. A total of 501 dogs from 103 litters were enrolled. Kaplan-Meier survival curves were used to describe breed differences in survival times. The effects of radiological hip and elbow dysplasia status as well as breed were assessed using a Cox proportional hazards model. The variables 'sex' and 'living region' were explored as potential confounders. Among LRs, 60.2% of the dogs were still alive at 10 years of age, and the corresponding figures for NFs, LEOs, and IWs were 28.8%, 16.11%, and 6.4%, respectively. Radiological hip dysplasia status and breed were found to influence overall survival. Two different time-varying effects were observed in that with the IW the hazard of death increased linearly through time, while the effect of severe radiological hip dysplasia decreased logarithmically with time. Location influenced the death hazard and dogs living in suburban areas or cities had longer mean time to death and a lower hazard compared to dogs living in the countryside. Radiological elbow dysplasia status was not found to have an effect on overall survival.
Find similar cases for your pet
PetCaseFinder finds other peer-reviewed reports of pets with the same symptoms, plus a plain-English summary of what was tried across them.
Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/22093911/