Table 3 Univariate and multivariate Cox proportional hazards regression analysis of patients with PABM in the OS group

age

 <70

1 (reference)

  ≥ 70

1.499

1.313–1.712

0.000

1.404

1.233–1.598

0.000

Race

 American Indian/Alaska Native

 Asian/Pacific Islander

0.667

0.304–1.466

0.313

 Black

0.993

0.481–2.052

0.985

 White

0.802

0.392–1.639

0.545

T Stage

 T1

 T2

0.956

0.822–1.112

0.560

 T3

0.829

0.670–1.026

0.084

 T4

1.063

0.855–1.323

0.582

N Stage

 N1

 N0

0.922

0.798–1.065

0.268

Surgery

 local

 NO

0.835

0.681–1.024

0.084

0.831

0.680–1.015

0.070

 Prostatectomy

0.468

0.232–0.944

0.034

0.356

0.180–0.703

0.003

Brain Metastasis

 No

1 (reference)

1 (reference)

 Yes

2.227

1.292–3.840

0.004

2.135

1.250–3.646

0.000

Liver Metastasis

 NO

 Yes

2.234

1.588–3.145

0.000

2.292

1.642–3.200

0.000

Lung Metastasis

 No

 Yes

1.337

1.010–1.770

0.042

1.438

1.088–1.902

0.011

Gleason score

  ≤ 6

 7(3 + 4)

1.605

0.888–2.900

0.117

1.718

0.955–3.092

0.071

 7(4 + 3)

1.589

0.892–2.834

0.116

1.815

1.025–3.214

0.041

 8

1.391

0.800–2.420

0.242

1.622

0.942–2.794

0.081

  ≥ 9

2.359

1.370–4.061

0.002

2.774

1.629–4.723

0.000

PSA

 <4

 4 ~ 10

0.659

0.420–1.032

0.069

 10 ~ 20

0.812

0.526–1.252

0.345

 >20

1.033

0.690–1.547

0.874

Marital

 Married

 other

1.284

1.120–1.472

0.000

1.390

1.218–1.587

0.000