Publications
Publications are ordered under the following headings:
Breed health
- Beagles kept as companion animals in the UK – demography, disorders and mortality (infographic)
O'Neill, D. G., Schiksnis, M. R., Brodbelt, D. C., Church, D. B., Goldberg, S. & Engdahl, K. S. (2025) Companion Animal Health and Genetics - The doodle dilemma: How the physical health of 'Designer-crossbreed' Cockapoo, Labradoodle and Cavapoo dogs' compares to their purebred progenitor breeds (infographic)
Bryson, G.T., O'Neill, D.G., Brand C.L., Belshaw, Z. and Packer, R.M.A. (2024) PLoS One - The epidemiology of tick infestation in dog breeds in the UK (infographic) O'Neill, D.G., Komutrattananon, R., Church D.B., Hartley, A.N. and Brodbelt, D.C. (2024) Journal of Small Animal Practice
- Demography, common disorders and mortality of Shih Tzu dogs under primary veterinary care in the UK (infographic)
Dale, F., Brodbelt, D.C., West, G., Church, D.B., Lee, Y.H. and O'Neill, D.G. (2024) Canine Medicine and Genetics
- English Cocker Spaniels under primary veterinary care in the UK: disorder predispositions and protections (infographic)
Engdahl, K.S., Brodbelt, D.C., Cameron, C., Church, D.B. and O'Neill, D.G. (2023) Canine Medicine and Genetics - Is it now time to iron out the wrinkles? Health of Shar Pei dogs under primary veterinary care in the UK (infographic)
O'Neill, D.G., Engdahl, K.S., Leach, A., Packer, R.M.A., Church, D.B. and Brodbelt, D.C. (2023) Canine Medicine and Genetics - A Review of Clinical Outcomes, Owner Understanding and Satisfaction following Medial Canthoplasty in Brachycephalic Dogs in a UK Referral Setting (2016–2021)
Andrews, A. L. M. M., Youngman, K. L., Packer, R. M. A., O’Neill, D. G., & Kafarnik, C. (2023) Animals - Demography, common disorders and mortality of Boxer dogs under primary veterinary care in the UK (infographic)
O’Neill, D. G., Skipper, A. M., Barrett, K., Church, D. B., Packer, R. M. A., & Brodbelt, D. C. (2023) Canine Medicine and Genetics - Demography and disorders of English Cocker Spaniels under primary veterinary care in the UK (infographic)
Engdahl, K. S., Brodbelt, D. C., Cameron, C., Church, D. B., Hedhammar, A. & O’Neill, D. G. (2023) Canine Medicine and Genetics - English Bulldogs in the UK: a VetCompass study of their disorder predispositions and protections (infographic)
O’Neill D. G., Skipper A., Packer R. M. A., Lacey C., Brodbelt D. C., Church D. B. & Pegram C. (2022) Canine Medicine and Genetics - Health of Pug dogs in the UK: disorder predispositions and protections (infographic)
O’Neill D. G., Sahota J., Brodbelt D. C., Church D. B., Packer R. M. A. & Pegram C. (2022) Canine Medicine and Genetics - French Bulldogs differ to other dogs in the UK in propensity for many common disorders: a VetCompass study (infographic)
O'Neill, D. G., Packer, R.M.A., Francis P., Church, D. B., Brodbelt, D. C. and Pegram C. (2021) Canine Medicine and Genetics - Disorder predispositions and protections of Labrador Retrievers in the UK (infographic)
Pegram, C., Woolley, C., Brodbelt, D. C., Church, D. B. & O'Neill, D. G. (2021) Nature Scientific Reports - Unravelling the health status of brachycephalic dogs in the UK using multivariable analysis (infographic)
O'Neill, D.G., Pegram, C., Crocker, P., Church, D. B., Brodbelt, D.C. and Packer, R.M.A. (2020) Nature Scientific Reports - Staffordshire bull terriers in the UK: their disorder predispositions and protections (infographic)
Pegram, C., Wonham, K., Brodbelt, D. C., Church, D. B. & O'Neill, D. G. (2020) Canine Medicine and Genetics - Demography and commonly recorded clinical conditions of Chihuahuas under primary veterinary care in the UK in 2016 (infographic)
O'Neill, D. G., Packer, R.M.A., Lobb, M., Church, D. B., Brodbelt, D. C. & Pegram, C. (2020) BMC Veterinary Research - Persian cats under first opinion veterinary care in the UK: demography, mortality and disorders (infographic)
O'Neill, D. G., Romans, C., Church, D. B., Brodbelt, D., Cerna, P and Gunn-Moore, D.A. (2019) Nature Scientific Reports - West Highland White Terriers under primary veterinary care in the UK in 2016: demography, mortality and disorders (correction to paper) (infographic)
O'Neill, D. G., Ballantyne, Z. F., Hendricks, A., Church, D. B., Brodbelt, D. C. & Pegram, C. (2019) Canine Genetics and Epidemiology - Disorders of Bulldogs under primary veterinary care in the UK in 2013 (infographic)
O'Neill, D.G., Skipper, A.M., Kadhim, J., Church, D.B., Brodbelt, D.C. and Packer, R.M.A.,(2019) PLoS One - Greyhounds under general veterinary care in the UK during 2016: demography and common disorders (infographic)
O'Neill, D.G., Rooney, N.J., Brock, C., Church, D.B., Brodbelt, D.C. and Pegram, C.(2019) Canine Genetics and Epidemiology - Miniature Schnauzers under primary veterinary care in the UK in 2013: Demography, mortality and disorders (infographic)
O'Neill, D.G., Butcher, C., Church, D.B., Brodbelt, D.C. and Gough, A.G. (2019) Canine Genetics and Epidemiology - Labrador retrievers under primary veterinary care in the UK: demography, mortality and disorders (infographic)
McGreevy, PD, Wilson BJ, Mansfield, CS. Church DB, Brodbelt DC, Dhand, N, Soares Magalhaes, RJ and O'Neill DG. (2018) Canine Genetics and Epidemiology - Demography and disorders of the French Bulldog population under primary veterinary care in the UK in 2013 (infographic)
O'Neill DG, Baral L, Church DB, Brodbelt DC and Packer RMA (2018) Canine Genetics and Epidemiology 5:3. - Border Terriers under primary veterinary care in England: demography and disorders (infographic)
O'Neill DG, Darwent EC, Church DB and Brodbelt DC (2017) Canine Genetics and Epidemiology 4:15 - Rottweilers under primary veterinary care in the UK: demography, mortality and disorders (infographic)
O'Neill DG, Yin Seah W, Church DB and Brodbelt DC (2017) Canine Genetics and Epidemiology 4:13 - Demography and disorders of German Shepherd Dogs under primary veterinary care in the UK (infographic)
O'Neill DG, Coulson NR, Church DB and Brodbelt DC (2017) Canine Genetics and Epidemiology 4:7 - Demography and health of Pugs under primary veterinary care in England (infographic)
O'Neill DG, Darwent EC, Church DB and Brodbelt DC (2016) Canine Genetics and Epidemiology, 3(1):1-12. - Disorders recorded in Cavalier King Charles Spaniels attending primary-care veterinary practices in England (infographic)
Summers JF, O’Neill DG, Church DB, Thomson PC, McGreevy PD and Brodbelt DC. (2015) Canine Genetics and Epidemiology.
Cardiovascular disorders
- Emulating the EPIC trial using VetCompass primary-care data: causal effects of pimobendan in UK dogs with grade IV/VI heart murmurs (Infographic)
Pegram, C., Diaz-Ordaz, K., Brodbelt, D.C., Chang, Y., Boswood, A., Wilshaw, J., Reep, C.A.T., Balling, S., Sahota, J., Church, D.B., O’Neill D.G. (2025). PLOS One - Prognostic factors in dogs with presumed degenerative mitral valve disease attending primary‐care veterinary practices in the United Kingdom
Mattin MJ, Boswood A, Church DB, Brodbelt DC (2018) Journal of Veterinary Internal Medicine - Degenerative mitral valve disease: Survival of dogs attending primary-care practice in England
Mattin MJ, Boswood A, Church DB, McGreevy PD, O'Neill DG, Thomson PC, Brodbelt DC. (2015; Epub ahead of print) Preventive Veterinary Medicine - Prevalence of and risk factors for degenerative Mitral Valve disease in dogs attending primary-care veterinary practices in England
Mattin MJ, Boswood A, Church DB, López-Alvarez J, McGreevy PD, O'Neill DG, Thomson PC, Brodbelt DC. (2015) Journal of Veterinary Internal Medicine
Cutaneous disorders
- Ironing out the wrinkles and folds in the epidemiology of skin fold dermatitis in dog breeds in the UK (infographic)
O’Neill D. G., Rowe D., Brodbelt D. C., Pegram C. & Hendricks A. (2022) Nature Scientific Reports - Frequency and predisposing factors for canine otitis externa in the UK – a primary veterinary care epidemiological view (infographic)
O'Neill DG, Volk AV, Soares T, Church DB, Brodbelt DC, Pegram C. (2021) Canine Medicine and Genetics - Juvenile-onset and adult-onset demodicosis in dogs in the UK: prevalence and breed associations
O'Neill DG, Turgoose E, Church DB, Brodbelt DC, Hendricks A. (2019) Journal of Small Animal Practice
Disease surveillance
- Detecting false-positive disease references in veterinary clinical notes without manual annotations
Kennedy N, Brodbelt DC, Church DB & O'Neill DG (2019) npj Digital Medicine - Evidence in practice – a pilot study leveraging companion animal and equine health data from primary care veterinary clinics in New Zealand.
Muellner, P., Muellner, U., Gates, M. C., Pearce, T., Ahlstrom, C., O'Neill, D., Brodblet, D. & Cave, N. J. (2016) Frontiers in Veterinary Science, 3. - Approaches to Canine Health Surveillance
O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC (2014) Canine Genetics and Epidemiology,1:2.
Endocrine disorders
- Frequency, Risk Factors, and Mortality for Diabetes Mellitus in 1 225 130 Cats Under Primary Veterinary Care in the United Kingdom in 2019 (Infographic)
Waite, O., Gostelow, R., Wright, E., Jepson, R.E., Brodbelt, D.C. and O'Neill, D.G. (2025) Journal of Veterinary Internal Medicine - Assessment of glucocorticoid and antibiotic exposure as risk factors for diabetes mellitus in selected dog breeds attending UK primary-care clinics
Heeley, A. M., Brodbelt, D. C., O'Neill, D. G., Church, D. B. & Davison, L. J. (2023) VetRecord - Ionized hypercalcemia in 238 cats from a referral hospital population (2009-2019)
Broughton, S. E., O’Neill, D.G., Syme, H. M. & Geddes, R.F. (2023) Journal of Veterinary Internal Medicine - Frequency, breed predispositions and other demographic risk factors for diagnosis of hypothyroidism in dogs under primary veterinary care in the UK (infographic)
O’Neill, D.G., Khoo, J.S.P., Brodbelt, D.C., Church, D.B., Pegram, C., & Geddes, R.F. (2022) Canine Medicine and Genetics - Frequency and risk factors for naturally occurring Cushing's syndrome in dogs attending UK primary‐care practices
Schofield I, Brodbelt DC, Niessen SJM, Church DB ,Geddes RF and O'Neill DG (2021) Journal of Small Animal Practice - Machine-learning based prediction of Cushing’s syndrome in dogs attending UK primary-care veterinary practice
Schofield I, Brodbelt DC, Kennedy N, Niessen SJM, Church DB, Geddes RF and O'Neill DG (2021) Scientific Reports - Hypoadrenocorticism in dogs under UK primary veterinary care: frequency, clinical approaches and risk factors (infographic)
Schofield I, Woolhead V, Johnson A, Brodbelt DC, Church DB and O'Neill DG (2021) Journal of Small Animal Practice - Development and internal validation of a prediction tool to aid the diagnosis of Cushing's syndrome in dogs attending primary‐care practice
Schofield I, Brodbelt D, Niessen S, Church D, Geddes R, Kennedy N and O'Neill D (2020) Journal of Veterinary Internal Medicine - Diabetes mellitus in dogs attending UK primary-care practices: frequency, risk factors and survival
Heeley A, O'Neill DG, Davison LJ, Church DB, Corless EK, Brodbelt DC (2020) Canine Medicine and Genetics - Development and evaluation of a health‐related quality‐of‐life tool for dogs with Cushing's syndrome
Schofield I, O'Neill DG, Brodbelt DC, Church DB, Geddes R & Niessen SJM (2019) Journal of Veterinary Internal Medicine - Survival analysis of 219 dogs with hyperadrenocorticism attending primary care practice in England
Schofield I, Brodbelt DC, Wilson ARL, Niessen SJM, Church DB, & O'Neill DG (2019) The Veterinary Record - Epidemiology of diabetes mellitus among 193,435 cats attending primary-care veterinary practices in England
O'Neill DG, Gostelow R, Orme C, Church D., Niessen SJM, Verheyen K & Brodbelt DC (2016) Journal of Veterinary Internal Medicine - Epidemiology of hyperadrenocorticism among 210,824 dogs attending primary-care veterinary practices in the UK from 2009 to 2014
O'Neill DG, Scudder C, Faire JM, Church DB, McGreevy PD, Thomson PC and Brodbelt DC (2016) Journal of Small Animal Practice - An Epidemiological study of diabetes mellitus in dogs attending first opinion practice in the UK
Mattin MJ, O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC (2014) The Veterinary Record, 174(14), 349. - Feline hyperthyroidism reported in primary-care veterinary practices in England: prevalence, associated factors and spatial distribution
Stephens MJ, O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC (2014) The Veterinary Record.
Exotics
- Demography, commonly diagnosed disorders and mortality in chelonia under UK primary veterinary care: a VetCompass study (infographic)
Hornby JM, Hedley J, Brodbelt DC, Church DB, O'Neill DG. (2025) PLOS ONE - Dental disease in rabbits under UK primary veterinary care: Clinical management and associated welfare impacts (infographic)
Jackson MA, O'Neill DG, Hedley J, Brodbelt DC, Burn CC. (2025) Vet Record - Conformation-associated health in pet rabbits in the UK: A VetCompass cohort study. (infographic)
O'Neill DG, Williams A, Brodbelt DC, Church DB, Hedley J. (2024) Vet Record - Demography, commonly diagnosed disorders and mortality of guinea pigs under primary veterinary care in the UK in 2019—A VetCompass study (infographic)
O'Neill, D.G., Taffinder, J.L., Brodbelt, D.C. and Baldrey, V. (2024) PLoS One - Dental disease in companion rabbits under UK primary veterinary care: Frequency and risk factors (infographic)
Jackson, M. A., Burn, C. C., Hedley, J., Brodbelt, D. C., O'Neill, D. G. (2024) Vet Record - Demography, disorders and mortality of pet hamsters under primary veterinary care in the United Kingdom in 2016
O'Neill, D. G., Kim, K., Brodbelt, D. C., Church, D. B., Pegram, C., and Baldrey, V. (2022) Journal of Small Animal Practice - Morbidity and mortality of domestic rabbits (Oryctolagus cuniculus) under primary veterinary care in England (infographic)
O'Neill, D. G., Craven, H. C., Brodbelt, D. C., Church, D. B. & Hedley J. (2019) Vet Record
Gastrointestinal disorders
- Epidemiology and clinical management of acute diarrhoea in dogs under primary veterinary care in the UK (Infographic)
O'Neill, D.G., Prisk, L., Brodbelt, D.C., Church, D.B., Allerton, F. (2025) PLOS ONE - Target Trial Emulation: Do antimicrobials or gastrointestinal nutraceuticals prescribed at first presentation for acute diarrhoea cause a better clinical outcome in dogs under primary veterinary care in the UK?
Pegram C., Diaz-Ordaz K., Brodbelt D. C., Chang Y., Tayler S., Allerton F., Prisk L., Church D. B. & O'Neill D. G. (2023) PLOS ONE - Gastric dilation-volvulus in dogs attending UK emergency-care veterinary practices: prevalence, risk factors and survival
O'Neill DG, Case J, Boag AK, Church DB, McGreevy PD, Thomson PC & Brodbelt DC (2017) Journal of Small Animal Practice, DOI: 10.1111/jsap.12723, n/a-n/a
General health
- Calculation of standard bodyweights for dogs, cats, rabbits, and guinea pigs (infographic)
Becker, S.D., O'Neill, D.G., Frosini, S., Stapleton, L.E., Hughes, D.M. and Brodbelt, D.C. (2025) PLOS ONE - Epidemiology of heat-related illness in dogs under UK emergency veterinary care in 2022 (infographic) (How to Cool Hot Dogs infographic)
Beard, S., Hall, E.J., Bradbury, J., Carter, A.J., Gilbert, S. and O’Neill, D.G. (2024) Vet Record - Life tables of annual life expectancy and risk factors for mortality in cats in the UK (infographic)
Teng, K.T.-y., Brodbelt, D.C., Church, D.B. and O’Neill, D.G. (2024) Journal of Feline Medicine and Surgery - A study of the impact of the COVID-19 pandemic on equine veterinary care in the UK
Allen, S. E., O’Neill, D. G., Cardwell, J. M., Verheyen, K. L. P., Brodbelt, D. C. (2023) Vet Record Open - Dog breeds and conformations in the UK in 2019: VetCompass canine demography and some consequent welfare implications (infographic)
O’Neill, D. G., McMillan, K. M., Church, D. B., & Brodbelt, D. C. (2023) PLOS ONE - Cooling Methods Used to Manage Heat-Related Illness in Dogs Presented to Primary Care Veterinary Practices during 2016–2018 in the UK
Hall, E.J.; Carter, A.J.; Bradbury, J.; Beard, S.; Gilbert, S.; Barfield, D.; O’Neill, D.G. (2023) Veterinary Sciences - Is UK Puppy Purchasing Suffering a Long COVID Effect? Ongoing Negative Impacts of the COVID-19 Pandemic upon Puppy Purchase Motivations and Behaviours in 2021 (infographic)
Packer, R. M. A.; Brand, C. L.; Belshaw, Z.; Pegram, C. L.; Dale, F.; Stevens, K. B.; O'Neill, D. G. (2023) Animals - Periodontal disease in cats under primary veterinary care in the UK: frequency and risk factors (infographic)
O’Neill, D. G., Blenkarn, A., Brodbelt, D. C., Church, D. B. & Freeman, A. (2023) Journal of Feline Medicine and Surgery - Commonly diagnosed disorders in domestic cats in the UK and their associations with sex and age (infographic)
O'Neill, D. G., Gunn-Moore, D., Sorrell, S., McAuslan, H., Church, D. B., Pegram, C. & Brodbelt, D. C. (2023) Journal of Feline Medicine and Surgery - Mortality related to general anaesthesia and sedation in dogs under UK primary veterinary care (infographic)
Shoop-Worrall, S. J. W., O’Neill, D. G., Viscasillas J. and Brodbelt, D. C. (2022) Veterinary Anaesthesia and Analgesia - How much is that doodle in the window? Exploring motivations and behaviours of UK owners acquiring designer crossbreed dogs (2019-2020) (infographic)
Burnett, E., Brand, C. L., O'Neill, D.G., Pegram, C. L., Belshaw, Z., Stevens, K. B. & Packer, M. A. (2022) Canine Medicine and Genetics - Risk Factors for Severe and Fatal Heat-Related Illness in UK Dogs—A VetCompass Study
Hall, E. J., Carter, A. J., Chico, G., Bradbury, J., Gentle, L. K., Barfield, D., & O’Neill, D. G. (2022) Veterinary Sciences - Life tables of annual life expectancy and mortality for companion dogs in the United Kingdom (infographic)
Teng, K., Brodbelt, D. C., Pegram, C., Church, D. B. & O’Neill, D. G. (2022) Scientific Reports - Pandemic Puppies: Demographic Characteristics, Health and Early Life Experiences of Puppies Acquired during the 2020 Phase of the COVID-19 Pandemic in the UK (infographic)
Brand, C. L., O'Neill, D.G., Belshaw, Z., Pegram, C. L., Stevens, K. B. & Packer, M. A. (2022) Animals - Pandemic Puppies: Characterising Motivations and Behaviours of UK Owners Who Purchased Puppies during the 2020 COVID-19 Pandemic (infographic)
Packer, M. A., Brand, C. L., Belshaw, Z., Pegram, C. L., Stevens, K. B. & O'Neill D.G. (2021) Animals - Reporting the epidemiology of aural haematoma in dogs and proposing a novel aetiopathogenetic pathway (infographic)
O'Neill, D.G., Lee, Y.H., Brodbelt, D.C., Church, D.B., Pegram, C. & Halfacree, Z. (2021) Scientific Reports - Epidemiology of periodontal disease in dogs in the UK primary-care veterinary setting (infographic)
O'Neill, D.G., Mitchell, C.E., Humphrey, J., Church, D.B., Brodbelt, D.C. & Pegram, C. (2021) Journal of Small Animal Practice - Proportion and risk factors for death by euthanasia in dogs in the UK (infographic)
Pegram, C., Gray, C., Packer, R.M.A., Richards, Y., Church, D.B., Brodbelt, D.C. & O'Neill D.G. (2021) Scientific Reports - Proposing the VetCompass clinical grading tool for heat-related illness in dogs (infographic)
Hall, E.J., Carter, A.J., Bradbury, J., Barfield, D. & O'Neill, D.G. (2021) Scientific Reports - Frequency, breed predisposition and demographic risk factors for overweight status in dogs in the UK (infographic)
Pegram, C., Raffan, E., White, E., Ashworth, A.H., Brodbelt D.C., Church, D.B. & O'Neill D.G. (2021) Journal of Small Animal Practice - Non‐neoplastic anal sac disorders in UK dogs: Epidemiology and management aspects of a research‐neglected syndrome (infographic)
O'Neill, D.G., Hendricks, A., Phillips, J.A., Brodbelt D.C., Church, D.B. & Loeffler A. (2021) Veterinary Record - Prevalence of commonly diagnosed disorders in UK dogs under primary veterinary care: results and applications (infographic)
O'Neill, D.G., James, H., Brodbelt D.C., Church, D.B. & Pegram, C. (2021) BMC Veterinary Research - Dogs Don’t Die Just in Hot Cars - Exertional Heat-Related Illness (Heatstroke) Is a Greater Threat to UK Dogs
Hall, E.J., Carter, A.J. & O'Neill, D.G. (2020) Animals - Incidence and risk factors for heat-related illness (heatstroke) in UK dogs under primary veterinary care in 2016 (infographic)
Hall, E.J., Carter, A.J. & O'Neill, D.G. (2020) Nature Scientific Reports - Health-related welfare prioritisation of canine disorders using electronic health records in primary care practice in the UK
Summers, J.F., O'Neill, D.G., Church, D., Collins, L., Sargan, D., Brodbelt, D.C. (2019) BMC Veterinary Research. - Mortality resulting from undesirable behaviours in dogs aged under three years attending primary-care veterinary practices in England
Boyd, C., Jarvis, S., McGreevy, P., Heath, S., Church, D., Brodbelt, D., and O'Neill, DG. (2018) Animal Welfare - Survival after diagnosis of hypertension in cats attending primary care practice in the United Kingdom
Conroy M, Chang YM, Brodbelt D and Elliott J (2018) Journal of Veterinary Internal Medicine 32(6):1846-1855 - Epidemiology of Road Traffic Accidents in Cats attending emergency-care practices in the UK ‘ is published in the Journal of Small Animal Practice
Conroy, M., O'Neill, DG., Boag, A., Church, DB., and Brodbelt, DC. (2019). Journal of Small Animal Practice. - Mortality due to trauma in cats attending veterinary practices in central and south-east England.
McDonald JL, Cleasby LR, Brodbelt DC, Church DB and O'Neill DG (2017) Journal of Small Animal Practice DOI: 10.1111/jsap.12716, n/a-n/a. - Longevity and Mortality in cats attending primary care veterinary practices in England (infographic)
O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC (2015) Journal of Feline Medicine and Surgery. - Prevalence of disorders recorded in cats attending primary-care veterinary practices in England (infographic)
O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC (2014) Veterinary Journal. - Prevalence of Disorders Recorded in Dogs Attending Primary-Care Veterinary Practices in England (infographic)
O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC (2014) PLoS One, 9(3). - Longevity and mortality of owned dogs in England (infographic)
O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC (2013) The Veterinary Journal, 198, 638-643.
Human translational studies
- The companion dog as a model for human aging and mortality
Hoffman, J.M., Creevy, K.E., Franks, A., O'Neill, D.G. and Promislow, D.E.L. (2018) Aging Cell. - Do female dogs age differently than male dogs?
Hoffman, J.M., O'Neill, D.G., Creevy, K.E., & Austad, S.N. (2018) The Journals of Gerontology: Series A, 73, 150-156. - Multiple morbidities in companion dogs: a novel model for investigating age-related disease
Jin, K., Hoffman, J.M., Creevy, K.E., O'Neill, D.G. and Promislow, D.E.L. (2016) Pathobiology of Aging and Age-related Diseases 6: 33276
Infectious diseases
- Leptospirosis vaccination in dogs attending UK primary care practices: vaccine uptake and factors associated with administration
Taylor, C., O'Neill, D.G., Catchpole, B. and Brodbelt, D.C. (2022) BMC Veterinary Research - Spatio-temporal distribution and agroecological factors associated with canine leptospitosis in Great Britain
Taylor, C., Brodbelt, D.C., Dobson, B., Catchpole, B., O'Neill D.G. and Stevens, K.B. (2021) Preventive Veterinary Medicine - Incidence and demographic risk factors for leptospirosis in dogs in the UK
Taylor, C., O'Neill, D.G., Catchpole, B. and Brodbelt, D.C. (2021) Veterinary Record
Neurological disorders
- Seizures in dogs under primary veterinary care in the United Kingdom: Etiology, diagnostic testing, and clinical management
Erlen A, Potschka H, Volk HA, Sauter-Louis C, O'Neill DG (2020) Journal of Veterinary Internal Medicine - Epidemiology of recurrent seizure disorders and epilepsy in cats under primary veterinary care in the United Kingdom
O'Neill DG, Phillipps SA, Egan JR, Brodbelt D, Church DB, Volk HA (2020) Journal of Veterinary Internal Medicine - Vestibular disease in dogs under UK primary veterinary care: Epidemiology and clinical management (infographic)
Radulescu SM, Humm K, Eramanis LM, Volk HA, Church DB, Brodbelt D, O'Neill DG (2020) Journal of Veterinary Internal Medicine - Associations between neutering and idiopathic epilepsy in Labrador retrievers and Border collies under primary veterinary care in the UK
Van Meervenne S, Volk HA, Verhoeven PS, Van Ham L, O'Neill DG (2019) The Veterinary Journal - Seizure occurrence in dogs under primary veterinary care in the UK: prevalence and risk factors
Erlen A, Potschka H, Volk HA, Sauter-Louis C, O'Neill DG, (2018) Journal of Veterinary Internal Medicine.
- Dogs attending primary-care practice in England with clinical signs suggestive of Chiari-like malformation/syringomyelia
Sanchis-Mora S, Pelligand L, Thomas C L, Volk H A, Abeyesinghe S M, Brodbelt D C, Church D B, Thomson P C, McGreevy P D, O'Neill D G (2016) Veterinary Record
- Prevalence and risk factors for canine epilepsy of unknown origin in the UK
Kearsley-Fleet L, O'Neill DG, Volk HA, Church DB, Brodbelt DC (2013) The Veterinary Record; 30;172
Oncology
- Survival time and prognostic factors in dogs clinically diagnosed with haemangiosarcoma in UK first opinion practice (infographic) Taylor, C., Barry, G.J., O'Neill, D.G., Guillén, A., Pickard Price, P., Labadie, J., Brodbelt, D.C. (2025) PLoS ONE
- Incidence and risk factors for insulinoma diagnosed in dogs under primary veterinary care in the UK Kraai, K., O’Neill, D. G., Davison, L. J., Brodbelt, D. C., Galac, S. & Buishand, F. O. (2025) Scientific Reports
- Dog breeds and conformations predisposed to osteosarcoma in the UK: a VetCompass study (infographic) O’Neill, D. G., Edmunds, G. L., Urquhart-Gilmore, J., Church, D. B., Rutherford, L., Smalley, M. J. & Brodbelt, D. C. (2023) Canine Medicine and Genetics
- Epidemiology of mammary tumours in bitches under veterinary care in the UK in 2016
Varney, D., O'Neill, D., O'Neill, M., Church, D., Stell, A., Beck, S., Smalley, M. J. & Brodbelt D. (2023) VetRecord - Associations Between Dog Breed and Clinical Features of Mammary Epithelial Neoplasia in Bitches: an Epidemiological Study of Submissions to a Single Diagnostic Pathology Centre Between 2008-2021
Edmunds, G., Beck, S., Kale, K.U., Spasic, I., O’Neill, D. G., Brodbelt, D. C., & Smalley, M. J. (2023) Journal of Mammary Gland Biology and Neoplasia - Epidemiology and risk factors for mammary tumours in female cats
Pickard Price P., Stell A., O'Neill D., Church D. & Brodbelt D. (2023) Journal of Small Animal Practice - Dog breeds and body conformations with predisposition to osteosarcoma in the UK: a case-control study (infographic)
Edmunds G.L., Smalley M.J., Beck S., Errington R.J., Gould S., Winter H., Brodbelt D.C. and O'Neil D.G. (2021). Canine Medicine and Genetics - Incidence and risk factors for feline lymphoma in UK primary-care practice (infographic)
Economu L, Stell A, O'Neill DG, Schofield I, Stevens K and Brodbelt DB (2020). Journal of Small Animal Practice - Clinical management of lipomas in dogs under primary care in the UK
Pegram C, Rutherford L, Corah, C, Church DB, Brodbelt DC and O'Neill DG (2020). Veterinary Record - Geographic distribution and environmental risk factors of lymphoma in dogs under primary-care in the UK
Schofield I, Stevens K, Pittaway C, O'Neill D, Fecht D, Dobson J and Brodbelt D (2019). Journal of Small Animal Practice - Incidence and risk factors for the diagnosis of lymphoma in dogs in UK primary-care practice
Pittaway C, Schofield I, Dobson J, Brodbelt DB, O'Neill DG (2019) Journal of Small Animal Practice - Lipoma in dogs under primary veterinary care in the UK: prevalence and breed associations.
O'Neill, DG., Corah, CH., Church, DB., Brodbelt, DC., and Rutherford, L. (2018). Canine Genetics and Epidemiology - Prevalence and risk factors for mast cell tumours in dogs in England
Shoop SJ, Marlow S, Church DB, English K, McGreevy PD, Stell AJ, Thomson PC, O'Neill DG and Brodbelt DC (2014) Canine Genetics and Epidemiology.
Ophthalmic disorders
- Conformational eyelid disorders in dogs under primary veterinary care in the UK - Epidemiology and clinical management. (Infographic)
O’Neill, D. G., Mustikka M.P., Brodbelt, D. C., Church, D. B. & Vaattovaara, V. (2025) PLoS ONE - Breed and conformational predispositions for prolapsed nictitating membrane gland (PNMG) in dogs in the UK: A VetCompass study (infographic)
O’Neill, D. G.,Yin, Y., Tetas Pont, R., Brodbelt, D. C., Church, D. B., Pegram, C. & Mustikka M. (2022) PLoS ONE - Keratoconjunctivitis sicca in dogs under primary veterinary care in the UK: an epidemiological study (infographic)
O'Neill, D.G., Brodbelt, D.C., Keddy, A., Church, D.B. & Sanchez, R.F. (2021) Journal of Small Animal Practice - Corneal ulcerative disease in dogs under primary veterinary care in England: epidemiology and clinical management
O'Neill, D.G., Lee, M.M, Brodbelt, D.C., Church, D.B. & Sanchez, R.F. (2017) Canine Genetics and Epidemiology 4:5
Orthopaedic disorders
- Target Trial Emulation: Does surgical versus non-surgical management of cranial cruciate ligament rupture in dogs cause different outcomes? Pegram C., Diaz-Ordaz K., Brodbelt, D. C., Chang Y., Frykfors von Hekkel A., Wu C., Church, D. B., O’Neill, D. G. (2024) Preventative Veterinary Medicine
- Risk factors for unilateral cranial cruciate ligament rupture diagnosis and for clinical management in dogs under primary veterinary care in the UK
Pegram C, Brodbelt DC, Diaz-Ordaz K, Chang Y, Frykfors von Hekkel A, Church DB, O’Neill DG (2023) The Veterinary Journal - Epidemiology and clinical management of elbow joint disease in dogs under primary veterinary care in the UK. (infographic)
O'Neill DG, Brodbelt DC, Hodge R, Church DB, Meeson RL (2020) Canine Medicine and Genetics - Prevalence, duration and risk factors for appendicular osteoarthritis in a UK dog population under primary veterinary care.
Anderson KL, O'Neill DG, Brodbelt DC, Church DB, Meeson RL, Sargan D, Summers JF, Zulch H & Collins LM (2018) Scientific Reports - The epidemiology of patellar luxation in dogs attending primary-care veterinary practices in England.
O'Neill DG, Meeson RL, Sheridan A, Church DB and Brodbelt DC (2016) Canine Genetics and Epidemiology - Epidemiology of Cranial Cruciate Ligament Disease Diagnosis in Dogs Attending Primary-Care Veterinary Practices in England
Taylor-Brown FE, Meeson RL, Brodbelt DC, Church DB, McGreevy PD, Thomson PC & O'Neill DG. (2015) Veterinary Surgery
Prescribing practices
- Antimicrobial usage in farm animal practices in the UK: A mixed-methods approach
Elkholly D., Fraser A., Booth R., O’Neill D., Mateus A., Brunton L. & Brodbelt D. (2023) Preventive Veterinary Medicine - Use of antimicrobials licensed for systemic administration in UK equine practice (infographic)
Allen SE, Verheyen KLP, O'Neill DG, & Brodbelt DC (2022) Equine Veterinary Journal - Veterinary drug therapies used for undesirable behaviours in UK dogs under primary veterinary care (infographic)
Craven, A.J., Pegram, C., Packer, R.M.A., Jarvis, S., McGreevy, P.D., Warnes, C., Church, D.B., Brodbelt, D.C., O’Neill, D.G., (2022) PLoS One: 17, e0261139 - Understanding Antibiotic Use in Companion Animals: A Literature Review Identifying Avenues for Future Efforts
Tompson, AC., Mateus, ALP., Brodbelt, DC. and Chandler, CIR. (2021) Frontiers in Veterinary Science: 8, 719547 - Side Effects to Systemic Glucocorticoid Therapy in Dogs Under Primary Veterinary Care in the UK
Elkholly, D., Brodbelt, DC., Church, DB., Pelligand, L., Mwacalimba, K., Wright, A. and O'Neill, DG. (2020) Frontiers in Veterinary Science - Systemic glucocorticoid usage in dogs under primary veterinary care in the UK: prevalence and risk factors
Elkholly, D., O'Neill, D., Wright, A., Mwacalimba, K., Nolan, L., Pavlock, A., Pelligand, L., Church, D., Brodbelt, D. (2019) Veterinary Record - Characterisation of antimicrobial usage in cats and dogs attending UK primary care companion animal veterinary practices
Buckland, E., O'Neill, D., Summers, J., Mateus, A., Church, D., Redmond, L. and Brodbelt, D. (2016) Veterinary Record - Prescribing practices of primary-care veterinary practitioners in dogs diagnosed with bacterial pyoderma
Summers JF, Hendricks A, Brodbelt DC (2014) BMC Veterinary Research. - Primary care veterinary usage of systemic glucocorticoids in cats and dogs in three UK practices
O'Neill DG, Hendricks A, Summers JF, Brodbelt DC (2012) J Small Anim Pract; 53(4): 217-22
Reproductive studies
- Applying clinical audit for quality improvement in canine dystocia cases seen at a UK primary-care emergency practice (infographic)
Leicester, L., Reid, A., Gilbert, S., Marshall, R., & O'Neill, D. G. (2023) Veterinary Record - Canine dystocia in 50 UK first-opinion emergency-care veterinary practices: Clinical management and outcomes (infographic)
O'Neill, D.G., O'Sullivan, A.M., Manson, E.A., Church, D.B., McGreevy, P.D., Boag, A.K. and Brodbelt, D.C. (2019) Veterinary Record - Canine dystocia in 50 UK first-opinion emergency-care veterinary practices: prevalence and risk factors (infographic)
O'Neill D.G., O'Sullivan AM, Manson EA, Church DB, Boag AK, McGreevy PD and Brodbelt D.C. and (2017) Veterinary Record
Respiratory disorders
- Epidemiological associations between brachycephaly and upper respiratory tract disorders in dogs attending veterinary practices in England.
O'Neill D, Jackson C, Guy J, Church D, McGreevy P, Thomson P. & Brodbelt D. (2015) Canine Genetics and Epidemiology
Urogenital disorders
- Later-age neutering causes lower risk of early‐onset urinary incontinence than early neutering – a VetCompass target trial emulation study (infographic)
Pegram C., Diaz-Ordaz K., Brodbelt, D. C., Chang Y., Hall, J., Church, D. B., O’Neill, D. G. (2024) PLOS ONE - Risk factors for upper urinary tract uroliths and ureteral obstruction in cats under referral veterinary care in the United Kingdom (infographic)
Geddes, R.F., Davison, L. J., Elliott, J., Syme, H. M. & O'Neill, D. G. (2023) Journal of Veterinary Internal Medicine - Occurrence and clinical management of urethral obstruction in male cats under primary veterinary care in the United Kingdom in 2016
Beeston, D., Humm, K., Church, D. B, Brodbelt, D., O'Neill, D. G. (2022) Journal of Veterinary Internal Medicine - Associations between neutering and early‐onset urinary incontinence in UK bitches under primary veterinary care
Pegram, C.L., Brodbelt, D.C., Church, D.B., Hall, J.L., Owen, L., Chang, Y., and Brodbelt, D.C. (2019) Journal of Small Animal Practice - Chronic kidney disease in cats attending primary care practice in the UK: a VetCompassTM study
Conroy, M., Brodbelt, D.C., O'Neill, D.G., Chang, Y., Elliott, J. (2019) Veterinary Record - Spaying and urinary incontinence in bitches under UK primary veterinary care: a case–control study
Pegram, C.L., O'Neill D.G., Church, D.B., Hall, J.L., Owen, L., and Brodbelt, D.C.(2019) Journal of Small Animal Practice - Urinary incontinence in male dogs under primary veterinary care in England: prevalence and risk factors
Hall, J.L., Owen, L., Riddell, A., Church, D.B., Brodbelt, D.C., and O'Neill D.G., (2019) Journal of Small Animal Practice - Signalment risk factors for cutaneous and renal glomerular vasculopathy (Alabama rot) in dogs in the UK
Stevens K.B., O'Neill D.G., Jepson R., Holm L.P., Walker D.J., and Cardwell J.M. (2018) Veterinary Record - Urinary incontinence in bitches under primary veterinary care in England: prevalence and risk factors
O'Neill D.G., Riddell A., Church D.B., Owen L., Brodbelt D.C. and Hall J.L. (2017) Journal of Small Animal Practice - Chronic Kidney Disease in Dogs in UK Veterinary Practices: Prevalence, Risk Factors, and Survival
O'Neill DG, Elliott J, Church DB, McGreevy PD, Thomson PC, Brodbelt DC (2013) Journal of Veterinary Internal Medicine; 27(4):814-21