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Table 3 Risk factors for mast cell tumour (MCT) from final multivariable binary logistic regression model

From: Prevalence and risk factors for mast cell tumours in dogs in England

Variable Category Case Control OR 95% CI P value
Age ≤2.0 years 8 840 1(base)   <0.001
  2.0-4.0 years 22 301 5.7 2.1-15.2    0.001
  4.0-6.0 years 60 245 15.9 6.2-40.4 <0.001
  6.0-8.0 years 82 199 18.3 7.3-45.9 <0.001
  8.0-10.0 years 95 171 38.3 15.1-97.4 <0.001
  >10.0 years 108 267 41.3 16.7-102.5 <0.001
Breed type Crossbred 65 391 1(base)   <0.001
  Boxer 47 22 10.7 3.7-30.4 <0.001
  Pug 7 15 10.0 1.5-64.5    0.016
  Staffordshire Bull terrier 72 159 4.2 2.2-8.2 <0.001
  Golden Retriever 43 39 2.0 0.9-4.5    0.080
  Weimaraner 6 9 1.4 0.2-9.8    0.718
  Labrador Retriever 106 215 1.3 0.8-2.3    0.319
  Jack Russell Terrier 18 155 0.9 0.4-2.1    0.790
  Cocker Spaniel 4 86 0.3 0.1-0.9    0.037
  Springer Spaniel 8 50 0.3 0.1-0.9    0.029
  West Highland White Terrier 3 66 0.2 0.0-0.8    0.030
  Border Collie 3 60 0.1 0.0-0.5    0.004
  Yorkshire Terrier 2 57 0.1 0.0-1.0    0.053
  German Shepherd Dog 1 63 0.0 0.0-0.4    0.007
  Other specific breed type 68 649 0.4 0.3-0.7    0.001
Insurance Status Not Insured 162 1502 1(base)   
  Insured 291 527 3.1 2.2-4.5 <0.001
Neuter Status Entire 130 102 1(base)   
  Neutered 323 820 0.1 0.1-0.2 <0.001
Weight ≤10.0 kg 49 771 1 (base)      0.004
  10.0-20.0 kg 60 379 1.1 0.6-2.1    0.744
  20.0-30.0 kg 145 296 2.6 1.4-4.8    0.002
  30.0-40.0 kg 135 197 2.5 1.3-4.9    0.007
  >40.0 kg 46 79 2.6 1.2-5.6    0.017
  1. Odds ratios (OR) with 95% confidence intervals (CI) are reported. Cases (n = 453) and controls (n = 2036) were selected from a VetCompass population of 168,636 dogs.