Juvenile‐onset and adult‐onset demodicosis in dogs in the UK: prevalence and breed associations

Objectives To explore epidemiological features of demodicosis relevant to UK veterinary general practitioners. Breed risk factors were proposed as distinct between juvenile‐onset and adult‐onset disease. Materials and Methods The study used anonymised clinical data on dogs under primary veterinary c...

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Bibliographic Details
Published in:Journal of small animal practice 2020-01, Vol.61 (1), p.32-41
Main Authors: O'Neill, D. G., Turgoose, E., Church, D. B., Brodbelt, D. C., Hendricks, A.
Format: Article
Language:English
Subjects:
Animals
Breeding
Confidence intervals
Diagnosis
Dog Diseases - genetics
Dogs
Epidemiology
Factor analysis
Phenotypes
Prevalence
Risk Factors
United Kingdom
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Summary:Objectives To explore epidemiological features of demodicosis relevant to UK veterinary general practitioners. Breed risk factors were proposed as distinct between juvenile‐onset and adult‐onset disease. Materials and Methods The study used anonymised clinical data on dogs under primary veterinary care at practices enrolled in the UK VetCompass Programme. Case inclusion required recording of a final demodicosis diagnosis for a dermatological condition that was present during the 2013 study period. Risk factor analysis used multivariable logistic regression modelling. Results In dogs aged 4 years (adult‐onset), the 1‐year period prevalence was 0.05% (95% confidence interval: 0.0.04 to 0.06). Six breeds showed increased odds of demodicosis compared with crossbred dogs: Chinese shar‐pei, shih‐tzu, West Highland white terrier, pug, boxer and Border terrier. Clinical Significance Juvenile‐onset demodicosis is much more common (about 10 times higher) than the adult‐onset form. Knowledge of the predisposed breeds for these two presentations can assist with diagnosis and support the concept of distinct aetiopathogenetic phenotypes.
ISSN:0022-4510
1748-5827
DOI:10.1111/jsap.13067