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Table 2 Ki-67 as a predictor of clinically significant outcomes

From: Comparison of digital image analysis and visual scoring of KI-67 in prostate cancer prognosis after prostatectomy

Outcome: Biochemical recurrence

 

HR

95 % CI

p-value

Univariate model

   

Ki-67*,&

1.29

0.97-1.73

0.019

Multivariate model

   

Ki-67*&

1.46

1.10-1.94

0.009

PSA (μg/L)

1.02

1.01-1.03

<0.001

Gleason Score&

1.09

0.94-1.26

0.25

pT3N + M+

1.47

1.17-1.84

<0.001

Age (years)

0.96

0.93-0.99

0.02

Outcome: Death from prostate cancer

 

HR

95 % CI

p-value

Univariate model

   

Ki-67&

1.19

1.01-1.41

0.040

Multivariate model

   

Ki-67&

1.26

1.06-150

0.010

PSA (μg/L)

1.01

0.98-1.04

0.577

Gleason Score&

1.30

0.79-2.14

0.293

pT3N + M+

3.49

1.19-10.23

0.022

Age (years)

0.97

0.86-1.08

0.554

  1. Ki-67*: The square root of Ki-67; PSA: Prostate-specific antigen; HR: Hazard ratio; CI: Confidence interval
  2. &Ki-67 was assessed as a continuous variable. Gleason score was dichotomized to <7 vs ≥ 7