borderline significantP = 0.079
After multivariable adjustment, the difference in risk of bone recurrence persisted (OR = 0.53, 95% CI: 0.34 to 0.83, P = 0.005); however, the difference in risk of brain recurrence was only borderline significant (OR = 1.63, 95% CI: 0.95 to 2.81, P = 0.079).