Table 2 Descriptive and univariable logistic regression results for breed-derived risk factors for osteosarcoma during 2016 in dogs under primary veterinary care in the VetCompass Programme in the UK. Column percentages shown in brackets. aCI confidence interval
From: Dog breeds and conformations predisposed to osteosarcoma in the UK: a VetCompass study
Variable | Category | Case No. (%) | Non-case No. (%) | Odds ratio | 95% CIa | Category P-value | Variable P-value |
|---|---|---|---|---|---|---|---|
Breed purity | Crossbred | 62 (18.73) | 194,429 (21.56) | Base | Â | Â | 0.003 |
Designer | 8 (2.42) | 52,863 (5.86) | 0.47 | 0.23–0.99 | 0.047 |  | |
Purebred | 261 (78.85) | 654,647 (72.58) | 1.25 | 0.95–1.65 | 0.114 |  | |
Kennel Club Recognised Breed | Not recognised | 75 (22.66) | 262,287 (29.08) | Base | Â | Â | 0.008 |
Recognised | 256 (77.34) | 639,652 (70.92) | 1.40 | 1.08–1.81 | 0.010 |  | |
Kennel Club Breed Group | Not Kennel Club recognised breed | 75 (22.66) | 262,287 (29.08) | Base |  |  |  < 0.001 |
Terrier | 15 (4.53) | 145,912 (16.18) | 0.36 | 0.21–0.63 |  < 0.001 |  | |
Gundog | 66 (19.94) | 135,607 (15.04) | 1.70 | 1.22–2.37 | 0.002 |  | |
Working | 102 (30.82) | 39,114 (4.34) | 9.12 | 6.77–12.29 |  < 0.001 |  | |
Pastoral | 19 (5.74) | 52,964 (5.87) | 1.25 | 0.76–2.08 | 0.377 |  | |
Utility | 8 (2.42) | 102,655 (11.38) | 0.27 | 0.13–0.56 |  < 0.001 |  | |
Hound | 42 (12.69) | 31,376 (3.48) | 4.68 | 3.21–6.83 |  < 0.001 |  | |
Toy | 4 (1.21) | 132,024 (14.64) | 0.11 | 0.04–0.29 |  < 0.001 |  | |
Chondrodystrophy | Non chondrodystrophic | 238 (71.90) | 309,279 (34.17) | Base |  |  |  < 0.001 |
Chondrodystrophic | 23 (6.95) | 345,327 (38.15) | 0.09 | 0.06–0.13 |  < 0.001 |  | |
Uncategorised | 70 (21.15) | 250,605 (27.68) | 0.36 | 0.27–0.47 |  < 0.001 |  | |
Skull conformation | Mesocephalic | 169 (51.06) | 417,452 (46.12) | Base |  |  |  < 0.001 |
Brachycephalic | 20 (6.04) | 167,413 (18.49) | 0.30 | 0.19–0.47 |  < 0.001 |  | |
Dolichocephalic | 72 (21.75) | 69,782 (7.71) | 2.55 | 1.93–3.36 |  < 0.001 |  | |
Uncategorised | 70 (21.15) | 250,564 (27.68) | 0.69 | 0.52–0.91 | 0.009 |  | |
Haircoat length | Medium | 44 (13.29) | 191,904 (21.20) | Base |  |  |  < 0.001 |
Short | 210 (63.44) | 339,558 (37.51) | 2.70 | 1.95–3.73 |  < 0.001 |  | |
Long | 7 (2.11) | 92.018 (10.17) | 0.33 | 0.15–0.74 | 0.007 |  | |
Uncategorised | 70 (21.15) | 281,731 (31.12) | 1.08 | 0.74–1.58 | 0.676 |  |