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Table 5 Odds ratios (ORs) and 95% confidence intervals (CIs) for particular grades of MCTs by tumour location

From: Epidemiological assessment of the risk of canine mast cell tumours based on the Kiupel two-grade malignancy classification

Location All MCTs Kiupel grade
Low High
OR (95% CI) P OR (95% CI) P OR (95% CI) P
Anus 0.11 (0.04–0.24) < 0.001 6.99 (2.68–18.24) < 0.001 31.72 (12.70–79.23) < 0.001
Axilla 2.21 (1.32–3.71) 0.003 1.03 (0.48–2.21) 0.925 6.30 (3.36–11.82) < 0.001
Head 0.44 (0.32–0.59) < 0.001 0.48 (0.34–0.67) < 0.001 0.32 (0.16–0.62) 0.001
Inguinal area 5.46 (2.58–11.55) < 0.001 1.88 (0.61–5.80) 0.271 17.69 (7.74–40.40) < 0.001
Neck 0.88 (0.54–1.42) 0.614 0.88 (0.52–1.52) 0.667 0.87 (0.34–2.17) 0.766
Pelvic limb 0.72 (0.56–0.94) 0.015 0.62 (0.47–0.81) 0.001 1.38 (0.77–2.49) 0.276
Pelvic limb 0.72 (0.56–0.94) 0.015 0.62 (0.47–0.81) 0.001 1.38 (0.77–2.49) 0.276
Perineum 1.93 (0.97–3.81) 0.058 1.05 (0.40–2.73) 0.92 4.83 (2.07–11.27) < 0.001
Scrotum 12.61 (5.55–28.64) < 0.001 6.99 (2.68–18.24) < 0.001 31.72 (12.70–79.23) < 0.001
Tail 0.58 (0.3–1.13) 0.112 0.77 (0.39–1.51) 0.453
Thoracic limb 0.84 (0.62–1.14) 0.274 0.96 (0.69–1.34) 0.836 0.48 (0.23–1.00) 0.05
Torso 1.59 (1.29–1.95) < 0.001 1.74 (1.38–2.18) < 0.001 1.17 (0.78–1.75) 0.43