CA15-3 change after

12 months (≤1 vs. ≥1)

3.167

(0.9223 - 10.88)

0.067

2.207

(0.6413 - 7.599)

0.209

CA15-3 normal or abnormal at bone metastasis onset

0.931

(0.3244 - 2.672)

0.8943

CEA change after

6 months (≤1 vs. ≥1)

1.687

(0.4866 - 5.846)

0.4098

CEA change after

12 months (≤1 vs. ≥1)

2.377

(0.7183 - 7.869)

0.1562

CEA normal or abnormal at bone metastasis onset

1.023

(0.3407 - 3.071)

0.9679

With hormone therapy or without hormone therapy

1.023

(0.3407 - 3.071)

0.9679

With anticancer drug or without anticancer drug.

1.909

(0.5378 - 6.775)

0.3172