Table 2 Univariable and multivariable Cox regression models for biochemical recurrence (BCR)-free survival (n = 372)

Age (year)

1.04 (0.9864–1.096)

0.147

1.058 (1.002–1.116)

0.04211

PSA

1.021 (0.998–1.044)

0.07484

N/A

PSAD

1.488 (1.05–2.107)

0.02533

N/A

Risk Stratification

2.11 (1.616–2.754)

 < 0.001

1.351 (1.001–1.823)

0.0494

GG^a

2.365 (1.833–3.05)

 < 0.001

1.694 (1.260–2.278)

 < 0.001

EPE

4.945 (2.711–9.018)

 < 0.001

N/A

SM

2.258 (1.271–4.013)

0.005499

N/A

SVI

6.608 (3.6–12.13)

 < 0.001

N/A

IDCP

4.1 (2.267–7.415)

 < 0.001

1.929 (1.046–3.557)

0.03539

pT

3.232 (2.287–4.566)

 < 0.001

1.972 (1.337–2.908)

 < 0.001