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Table 2 Univariate and multivariate analysis for overall survival

From: Prognostic value of the bone scan index using a computer-aided diagnosis system for bone scans in hormone-naive prostate cancer patients with bone metastases

  Univariate analysis Multivariate analysis
  p value Hazard ratio 95.0 % CI p value Hazard ratio 95.0 % CI
    Lower Upper    Lower Upper
Age (≤72 years old vs >72) 0.014 4.136 1.332 12.843 0.006 5.811 1.656 20.386
PSA (>247 ng/mL vs ≤247 ng/mL) 0.981 1.012 0.379 2.703 0.407 0.621 0.201 1.914
Gleason score (10–8 vs ≤7) 0.983 1.017 0.228 4.543 0.617 1.640 0.236 11.403
T stage (4 vs ≤3) 0.239 1.908 0.651 5.588 0.137 2.576 0.741 8.953
N stage (1 vs 0) 0.723 1.198 0.441 3.255 0.251 2.035 0.605 6.843
M stage (1c vs 1b) 0.744 0.780 0.176 3.462 0.467 0.524 0.092 2.990
BSI (>1.9 % vs ≤1.9 %) 0.049 2.921 1.006 8.483 0.023 4.676 1.238 17.661
  1. PSA prostate-specific antigen, BSI bone scan index
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