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Table 1
Longevity of cat breeds attending primary-care veterinary practices in England (n = 4,009). Adapted from (7).
An Urban Experience
Another VetCompassTM study characterised all disorders recorded in 3,584 cats from a study population comprised 142,576 cats attending 91 clinics in England (8). The
most common disorders recorded were periodontal disease (13.9%; 95% CI, 12.5-15.4), flea infestation (8.0%; 95% CI, 7.0-8.9), obesity (6.7%; 95% CI, 5.7-7.6), heart murmur (5.0%; 95% CI, 4.1-5.8) and traumatic
injury (4.6%; 95% CI, 3.8-5.3). In relation to our questions of main interest, this study compared purebred and crossbred cats across the twenty most common disorders and identified that crossbreds had higher prevalence for two disorders (abscess [excluding cat bite abscess], P = 0.009; hyperthyroidism, P = 0.002) whereas purebreds had higher prevalence for one disorder (coat disorder;
P < 0.001; Table 2).
 Breed
  Median (years)
   IQR
 Range
  Birman
 16.1
 8.1-16.9
  1.0-20.7
  Burmese
 14.3
 10.0-17.0
  0.7-20.7
  Siamese
  14.2
  10.8-19.0
   0.9-21.1
  Persian
 14.1
  12.0-17.0
 0.0-21.2
  Crossbred
 14.0
 9.2-17.0
  0.0-26.7
  British shorthair
 11.8
 5.8-16.3
  0.0-21.0
  Maine Coon
 11.0
 4.0-15.5
  0.2-19.0
  Ragdoll
 10.1
 0.9-14.8
  0.1-17.9
  Abyssinian
 10.0
 1.1-18.1
  1.0-20.8
  Bengal
  7.3
  2.2-11.5
   0.6-13.7
 Table 2
Prevalence values in purebred and crossbred cats attending primary veterinary practices in England for commonly recorded disorders. Adapted from (8)
  Purebred
 Crossbred
  Disorder
 Prevalence (%)
 95% CI
 Prevalence (%)
 95% CI
 P-value
 Periodontal disease
 15.6
 11.7-19.6
 13.7
 12.2-15.2
 1.000
 Flea infestation
 5.0
 3.0-7.1
 8.3
 7.3-9.4
 0.108
 Obesity
  5.0
  2.7-7.4
  6.9
  5.9-7.9
  1.000
  Heart murmur
 4.2
  2.2-6.3
5.1
 4.2-5.9
  1.000
 Traumatic injury
 4.0
 2.0-5.9
 4.7
 3.9-5.4
 1.000
 Nail clip
 5.3
 3.4-7.2
 3.5
 2.7-4.2
 0.504
 Chronic kidney failure
 4.2
 2.2-6.2
 3.6
 2.9-4.2
 1.000
 Cat bite injury
 2.7
 0.9-4.4
 3.7
 3.0-4.4
 1.000
 Abscess (excluding cat bite abscess)
 0.8
 0.3-2.3
 3.5
 2.9-4.2
 0.009
 Cat bite abscess
 1.3
 0.6-3.1
 3.4
 2.8-4.1
 0.145
 Conjunctivitis
 2.9
 1.2-4.6
 3.0
 2.5-3.6
 1.000
 Hyperthyroidism
 0.5
 0.1-1.9
 3.2
 2.7-3.9
 0.002
 Vomiting
 3.2
 1.4-5.0
 2.9
 2.3-3.4
 1.000
 Urinary tract infection
 2.9
 1.2-4.7
 2.6
 2.1-3.1
 1.000
 Diarrhoea
 3.4
 1.6-5.3
 2.5
 2.0-3.0
 1.000
 Coat disorder
 5.6
 2.9-8.2
 2.2
 1.7-2.7
 < 0.001
 Wound
 1.9
 0.9-3.8
 2.3
 1.9-2.9
 1.000
 Degenerative joint disease
 2.7
 1.4-4.8
 2.0
 1.5-2.5
 1.000
 Flea bite hypersensitivity
 0.5
 0.1-1.9
 2.1
 1.6-2.6
 0.258
 Tooth structure disorder
  2.7
  1.4-4.8
  1.6
  1.2-2.1
  1.000
 These results tell a complicated story on longevity and health of purebred versus crossbred cats.
References
1. Bateson P. Independent inquiry into dog breeding. Cambridge: University of Cambridge; 2010.
2. Gunn-Moore D, Bessant C, Malik R. Breed-related disorders of cats. Journal of Small Animal Practice. 2008;49(4):167-8.
3. O’Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. Prevalence of disorders recorded in dogs attending primary-care veterinary practices in England. PLoS ONE. 2014;9(3):1-16.
4. O’Neill D, Church D, McGreevy P, Thomson P, Brodbelt D. Approaches to canine health surveillance. Canine Genetics and Epidemiology. 2014;1(1):2.
5. Egenvall A, Bonnett BN, Häggström J, Ström Holst B, Möller L, Nødtvedt A. Morbidity of insured Swedish cats during 1999 to 2006 by age, breed, sex, and diagnosis. Journal of Feline Medicine and Surgery. 2010;12(12):948-59.
6. Egenvall A, Nødtvedt A, Haggstrom J, Strom Holst B, Moller L, Bonnett BN. Mortality of life-insured Swedish cats during 1999-2006: age, breed, sex, and diagnosis. Journal of Veterinary Internal Medicine. 2009;23(6):1175-83.
7. O’Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. Longevity and mortality of cats attending primary care veterinary practices in England. Journal of Feline Medicine and Surgery. 2015;17(2):125-33.
8. O’Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. Prevalence of disorders recorded in cats attending primary-care veterinary
practices in England. The Veterinary Journal. 2014;202(2):286-91.
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