Research, carried out using the Royal Veterinary College\u2019s (RVC) VetCompass programme, investigated the severity and duration of eight major conditions seen by vets to record how they affect the overall measure of welfare impact.\r\n\r\n\r\n\r\nThe evidence-based study indicated that of eight major disorders seen by veterinary surgeons in practice, dental disease, osteoarthritis and obesity had the highest overall welfare impact on affected dogs. \u00a0\r\n\r\nThe eight common conditions examined in this study were anal sac disorder, conjunctivitis, dental disease, dermatitis, overweight\/obese, lipoma, osteoarthritis and otitis externa. The most common of these were dental disorder, being overweight\/obese and anal sac disorder and the ones that affected the dogs\u2019 lives for the longest were dental disease, osteoarthritis and obesity. Conditions classified as most severe were osteoarthritis, otitis externa and dermatitis.\r\n\r\nThe new study was conducted by analysing data from 455,557 dogs who presented at veterinary practices participating in VetCompass. It represents a collaboration between researchers at the RVC, Cambridge and Leeds Universities. The key findings were: \r\n\r\n \tThe most common conditions were dental disorder (9.6%), overweight\/obese (5.7%) and anal sac disorder (4.5%)\r\n \tThe conditions that lasted the longest were dental disorders (76% of year), osteoarthritis (82%), and overweight\/obese (70%)\r\n \tThe most severe conditions were osteoarthritis (scoring 13 of 21, higher scores indicated greater severity), otitis externa (11\/21) and dermatitis demonstrated (10\/21) highest overall severity scores. The conditions with the highest overall scores were dental disease, osteoarthritis and obesity\r\n\r\nBy taking frequency, duration and severity together, this study showed the conditions with the highest welfare impact overall are dental disease, osteoarthritis and obesity. It is hoped these results can aid vets to target conditions that have the greatest impact on dogs they treat. \u00a0\r\n\r\nDave Brodbelt, professor of evidence-based veterinary medicine at the RVC and senior researcher on the study, said: \u201cFirst opinion veterinary professionals see dogs presenting to them with a range of conditions everyday and understand what are the common diseases that they treat. \r\n\r\n\u201cYet there is a need for clear evidence based welfare assessment of the major conditions of dogs. This work adds to our understanding by allowing the transparent comparison of commonly seen disorders in primary practice and highlights conditions with greatest welfare impact.\u201d\r\n\r\nDr Dan O\u2019Neill, senior lecturer in epidemiology at the RVC and co-author, added: \u201cDuring my 20 years as a first opinion vet, owners constantly asked me to advise them about the most important conditions that they should try to prevent in their dogs. At that time, I could not answer this as it was unknown to science. \r\n\r\n\u201cWe now have this answer; and we can now advise owners to focus on dental health, monitoring for joint disease and to pay special attention to their dogs body condition score. Finally, we have the key to prioritising long-term health in dogs overall. This is a huge step forward to improving dog welfare; huge thanks to Dogs Trust for having the vision to support this work.\u201d\r\n\r\nPaula Boyden, veterinary director at Dogs Trust, the funders of this project, said: \u201cDogs Trust was delighted to be able to support the RVC VetCompass programme\u2019s welfare prioritisation study through the charity\u2019s Canine Welfare Grants programme. The charity invests in research projects aimed specifically at improving the welfare of dogs. The results of this valuable study are likely to have a far-reaching impact on the way that vets treat dogs in the future by helping to focus attention and treatment on the conditions most likely to impact on a dog\u2019s wellbeing.\u201d\r\n\r\nThe study, Health-related welfare prioritisation of canine disorders using electronic health records in primary care practice in the UK, is freely available open access in the journal BMC Veterinary Research.