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Table 3 Predictive factors for bounce (univariate and multivariate analysis)

From: Permanent 125I-seed prostate brachytherapy: early prostate specific antigen value as a predictor of PSA bounce occurrence

   Univariate analysis Multivariate analysis
Variables   OR CI 95% p OR CI 95% p
Age   0.936 0.895-0.978 0.0032 0.929 0.888-0.972 0.0016
PSA at 6 weeks (wks)   1.129 0.999-1.276 0.0526 1.166 1.025-1.327 0.0197
Pre-BT PSA   1.044 0.941-1.157 0.4190 - - -
Risk group (D'Amico) Int. risk vs low risk 1.180 0.625-2.229 0.6097 - - -
BT technique FIRST vs Free seeds 0.666 0.364-1.217 0.1865 - - -
Increased PSA at 6 wks Yes vs no 1.069 0.511-2.237 0.8584 - - -
Dosimetric data D95 (D95) 1.009 0.994-1.024 0.2591 - - -
  D90 (D90) 1.007 0.990-1.023 0.4227 - - -
  V144 (V144) 1.075 0.954-1.211 0.2351 - - -
  Prostate volume 0.992 0.960-1.024 0.6166 - - -
  # seeds 0.997 0.975-1.019 0.7775 - - -
  Seed density 1.187 0.490-2.877 0.7037 - - -