Table 3

Multivariate cox proportional hazard models of bone sarcoma in a cohort of Rottweiler dogs

Hazard ratio (95% CI)P
Model 1 (n = 578 dogs)
 Gender0.90 (0.48–1.69)0.73
 Months sexually intact0.99 (0.98–0.99)<0.0001
 Adult height (cm)1.02 (0.93–1.10)0.73
 Adult body weight (kg)0.99 (0.94–1.05)0.83
Model 2
 Male (n = 202 dogs)
  Months sexually intact0.99 (0.98–1.00)0.003
  Adult height (cm)1.11 (0.95–1.29)0.21
  Adult body weight (kg)0.98 (0.90–1.07)0.72
 Female (n = 329 dogs)
  Mo sexually intact0.98 (0.98–0.99)0.001
  Adult height (cm)0.98 (0.89–1.08)0.70
  Adult body weight (kg)0.99 (0.93–1.06)0.75