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Table 2 Multivariate Cox-regression analysis regarding the pretreatment and treatment characteristics and biochemical relapse

From: Stereotactic body radiotherapy for localized prostate cancer – 5-year efficacy results

Variable

HR (95% CI)

p value

Gleason score (≤ 7, ≥ 8)

2.35 (1.03–5.36)

0.043

iPSA (<  10 ng/ml, ≥ 10 ng/ml)

1.36 (0.61–3.01)

0.454

Dose (35 vs. 36.25 Gy)

1.10 (0.41–2.98)

0.846

ADT (no vs. yes)

3.72 (1.06–13.14)

0.041

  1. Abbreviations: Gy Gray, iPSA initial PSA at diagnosis, ADT androgen deprivation therapy, HR Hazard ratio, CI confidence interval