Dataset Information

Demography and commonly recorded clinical conditions of Chihuahuas under primary veterinary care in the UK in 2016.

ABSTRACT: BACKGROUND:The Chihuahua, the world's smallest dog breed, is a popular breed in the UK today. The VetCompass™ Programme collates de-identified clinical records from primary-care veterinary practices in the UK for epidemiological research. This study aimed to characterise the demography, age at death and common disorders of Chihuahuas under primary veterinary care during 2016 in the UK. RESULTS:Chihuahuas comprised 11,647/336,865 (3.46%) dogs under veterinary care during 2016. The annual proportional birth rate for Chihuahuas rose from 1.01% in 2005 to 5.35% in 2016. Median adult bodyweight was 3.4?kg (interquartile range [IQR]: 2.7-4.3, range 0.8-9.8).). Median age was 2.8?years (interquartile range [IQR] 1.6-4.9). Median age at death from this young expanding population was 8.2?years (IQR 3.5-12.1). Females (10.2?years) outlived males (6.9?years) (Mann-Whitney U test: P =?0.005). The most common grouped causes of death were heart disease (18.8%, 95% CI: 10.9-29.0), lower respiratory tract disorder (16.3%, 95% CI: 8.9-26.2) and traumatic injury (13.8%, 95% CI: 7.1-23.3). The most common specific disorders were periodontal disease (13.5%, 95% CI: 12.6-14.4), obesity (5.9%, 95% CI: 5.3-6.5), retained deciduous dentition (5.7%, 95% CI: 5.1-6.4), anal sac impaction (4.9%, 95% CI: 4.4-5.5) and aggression (4.2%, 95% CI: 3.7-4.8). Among the 28 most common fine-level disorders, males had statistically (P

SUBMITTER: O'Neill DG

PROVIDER: S-EPMC7014602 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature

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Demography and commonly recorded clinical conditions of Chihuahuas under primary veterinary care in the UK in 2016.

O'Neill Dan G DG Packer Rowena M A RMA Lobb Meghan M Church David B DB Brodbelt Dave C DC Pegram Camilla C

BMC veterinary research 20200212 1

<h4>Background</h4>The Chihuahua, the world's smallest dog breed, is a popular breed in the UK today. The VetCompass™ Programme collates de-identified clinical records from primary-care veterinary practices in the UK for epidemiological research. This study aimed to characterise the demography, age at death and common disorders of Chihuahuas under primary veterinary care during 2016 in the UK.<h4>Results</h4>Chihuahuas comprised 11,647/336,865 (3.46%) dogs under veterinary care during 2016. The ...[more]

PMID: 32046714

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Project description:Rottweilers are reportedly predisposed to many disorders but accurate prevalence information relating to the general population are lacking. This study aimed to describe demography, mortality and commonly recorded diseases in Rottweilers under UK veterinary care. Clinical health records within the VetCompass Programme were explored for disorders recorded during 2013.Rottweilers comprised 5321 (1.17%) of 455,557 dogs attending 304 clinics. Annual proportional birth rates dropped from 1.75% in 2006 to 1.07% in 2013. Median adult bodyweight overall was 44.9 kg (IQR 39.55-51.00, range 20.00-88.80). Median male adult bodyweight (48.5 kg, interquartile range [IQR] 43.0-54.0, range 20.0-88.8) was heavier than female (41.5 kg, IQR 37.0-46.4, range 21.1-73.5) (P < 0.001). Median longevity overall was 9.0 years (IQR 7.2-10.5, range 0.0-17.0). Median female longevity (9.5 years, IQR 7.8-11.0) was greater than male (8.7 years, IQR 6.8-10.1) (P?=?0.002). The most common causes of death were neoplasia (33.0%), inability to stand (16.0%) and mass-associated disorder (7.1%).At least one disorder was recorded for 60.31% of Rottweilers. The most prevalent specific disorders recorded were aggression (7.46%, 95% CI 6.40-8.64), overweight/obesity (7.06%, 95% CI: 6.02-8.21), otitis externa (6.14%, 95% CI: 5.18-7.23) and degenerative joint disease (4.69%, 95% CI: 3.84-5.66). Male Rottweilers had higher prevalence than females for aggression (9.36% versus 5.47%, P?=?0.001) and pyotraumatic dermatitis (4.05% versus 1.76%, P?=?0.001). Aggression was more prevalent in neutered than entire females (7.5% versus 3.1%, P?=?0.003) but did not differ between neutered and entire males (9.6% versus 9.0%, P?=?0.773). The most frequent disorder groups were musculoskeletal (12.01%, 95% CI: 10.69-13.45), dermatological (10.96%, 95% CI: 9.69-12.35), gastro-intestinal (195, 8.87%, 95% CI: 7.72-10.14), undesirable behaviour (7.96%, 95% CI: 6.87-9.18) and neoplasia (7.96%, 95% CI: 6.87-9.18).The current study assists prioritisation of health issues within Rottweilers. Rottweilers are relatively short-lived and neoplasia is a common cause of death. The most common disorders were aggression, overweight/obesity, otitis externa and degenerative joint disease. Males were significantly heavier, shorter-lived and predisposed to aggression than females. These results can alert prospective owners to potential health issues and optimise sex selection decision-making.

Project description:Purebred dog health is thought to be compromised by an increasing occurence of inherited diseases but inadequate prevalence data on common disorders have hampered efforts to prioritise health reforms. Analysis of primary veterinary practice clinical data has been proposed for reliable estimation of disorder prevalence in dogs. Electronic patient record (EPR) data were collected on 148,741 dogs attending 93 clinics across central and south-eastern England. Analysis in detail of a random sample of EPRs relating to 3,884 dogs from 89 clinics identified the most frequently recorded disorders as otitis externa (prevalence 10.2%, 95% CI: 9.1-11.3), periodontal disease (9.3%, 95% CI: 8.3-10.3) and anal sac impaction (7.1%, 95% CI: 6.1-8.1). Using syndromic classification, the most prevalent body location affected was the head-and-neck (32.8%, 95% CI: 30.7-34.9), the most prevalent organ system affected was the integument (36.3%, 95% CI: 33.9-38.6) and the most prevalent pathophysiologic process diagnosed was inflammation (32.1%, 95% CI: 29.8-34.3). Among the twenty most-frequently recorded disorders, purebred dogs had a significantly higher prevalence compared with crossbreds for three: otitis externa (P = 0.001), obesity (P = 0.006) and skin mass lesion (P = 0.033), and popular breeds differed significantly from each other in their prevalence for five: periodontal disease (P = 0.002), overgrown nails (P = 0.004), degenerative joint disease (P = 0.005), obesity (P = 0.001) and lipoma (P = 0.003). These results fill a crucial data gap in disorder prevalence information and assist with disorder prioritisation. The results suggest that, for maximal impact, breeding reforms should target commonly-diagnosed complex disorders that are amenable to genetic improvement and should place special focus on at-risk breeds. Future studies evaluating disorder severity and duration will augment the usefulness of the disorder prevalence information reported herein.

Dataset Information

Demography and commonly recorded clinical conditions of Chihuahuas under primary veterinary care in the UK in 2016.

Publications

Demography and commonly recorded clinical conditions of Chihuahuas under primary veterinary care in the UK in 2016.

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