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Table 3 Multivariate analysis of factors affecting biochemical free survival

From: Nadir PSA is a strong predictor of treatment outcome in intermediate and high risk localized prostate cancer patients treated by definitive external beam radiotherapy and androgen deprivation

Factor HR (95% CI) p-value
T-stage 1.84 (1.073–3.155) 0.027
 T1-T2 1 (reference)
 T3-T4 2.886 (1.408–5.916) 0.004
GS 1.219 (0.887–1.677) 0.222
 < 8 1 (reference)
 8–10 2.449 (1.214–4.940) 0.012
nPSA (ng/ml) 2.306 (1.503–3.537) <0.001
 < 0.06 1 (reference)
 ≥ 0.06 4.409 (2.180–8.916) <0.001
bPSA (ng/ml) 1.003 (0.992–1.014) 0.649
 ≤ 20 ng/ml 1 (reference)
 > 20 ng/ml 1.641 (0.765–3.520) 0.203
RT dose (Gy) 0.916 (0.738–1.137) 0.425