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Table 2 C-index and univariate Cox regression analysis (N = 48)

From: 3D skeletal uptake of 18F sodium fluoride in PET/CT images is associated with overall survival in patients with prostate cancer

  C-index 95% CI p value Hazard ratio 95% CI p value
BSI 0.68 0.59–0.76 <0.001 1.26 1.13–1.41 <0.001
PET index 0.69 0.60–0.78 <0.001 1.17 1.06–1.29 =0.002
PET15 index 0.70 0.61–0.79 <0.001 2.01 1.43–2.83 <0.001