Table 3.

Cox regression analysis of association between prostate brain metastasis and other variables.

Variables	Univariate		Multivariate
	Odds ratio (95% CI)	P value	Odds ratio (95% CI)	P value
Age (≤75 vs >75 years)	0.72 (0.50–1.03)	0.07	0.77 (0.53–1.1)	0.16
Surgery (yes vs no)	0.62 (0.39–0.99)	0.04	0.68 (0.42–1.09)	0.11
Chemotherapy (yes vs no)	0.56 (0.32–0.98)	0.04	0.60 (0.34–1.05)	0.07
Race (white vs other)	1.06 (0.71–1.58)	0.8
Lung metastasis (yes vs no)	0.71 (0.47–1.07)	0.1
Bone metastasis (yes vs no)	1.23 (0.74–2.05)	0.43
Liver metastasis (yes vs no)	0.91 (0.54–1.55)	0.7
Grade group (I/II vs III/IV)	0.59 (0.23–1.49)	0.26