Prevalence of adverse food reactions in 130 dogs in Italy with dermatological signs: a retrospective study.
OBJECTIVE
To determine the prevalence of adverse food reactions (AFRs) in dogs with dermatological signs presented to the referral dermatological clinic of the University of Milan.


METHODS
The medical records of dogs with dermatological signs were reviewed. Prevalence of AFRs was calculated. Owner and clinician pruritus scores were compared. Breed, sex and age predisposition were statistically tested, as was the association between AFR and selected clinical features.


RESULTS
The prevalence of AFRs in dogs with dermatological signs was 12% (16 of 130). AFR was diagnosed in 26% of dogs with allergic disease and 48% of those subjected to a dietary trial. There was a significant association between AFRs and early onset of clinical signs (< 1 year) (OR=3.8; P=0.0221, 95% CI=1.27 to 11.16). There was a significant association between AFRs and both otitis externa (OR=5.9; P=0.0015, 95% CI=2 to 17.9) and perianal fistula (OR=26.1; P=0.0058, 95% CI=2.52 to 269.4), although all dogs with perianal fistulas were German shepherd dogs.


CONCLUSIONS
The prevalence of AFRs in the study population was higher than most reported values. Further studies are warranted to investigate the true prevalence of AFR and its possible association with perianal fistula and other potential markers.
Department of Veterinary Clinical Science, University of Milan, Milan, Italy.
D
D
Proverbio
R
R
Perego
E
E
Spada
E
E
Ferro
D000821:Animal Feed / Q000009:adverse effects*; D000818:Animals; D001947:Breeding; D004283:Dog Diseases / Q000453:epidemiology* / Q000209:etiology; D004285:Dogs; D005260:Female; D005402:Fistula / Q000453:epidemiology / Q000662:veterinary; D005512:Food Hypersensitivity / Q000453:epidemiology / Q000209:etiology / Q000662:veterinary*; D007558:Italy / Q000453:epidemiology; D008297:Male; D010481:Perianal Glands / Q000293:injuries; D015995:Prevalence; D011537:Pruritus / Q000453:epidemiology / Q000209:etiology / Q000662:veterinary; D012189:Retrospective Studies