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Table 4 Correlative associations between univariate test variables.

From: Elevated levels of Dickkopf-related protein 3 in seminal plasma of prostate cancer patients

  

SP PSA

serum PSA

Age

Gleason*

  

all

neg

pos

all

neg

pos

all

neg

pos

 

Cohort

Variable

r

( p -value)

r

( p -value)

r

( p -value)

r

( p -value)

r

( p -value)

r

( p -value)

r

( p -value)

r

( p -value)

r

( p -value)

r

( p -value)

all patients

SP Dkk-3

-0.276

-0.165

-0.417

-0.950

-0.212

-0.128

0.118

-0.010

0.220

0.019

  

(0.013)

(0.301)

(0.007)

(0.400)

(0.183)

(0.432)

(0.294)

(0.950)

(0.173)

(0.906)

 

SP PSA

1

1

1

0.020

0.125

-0.068

-0.320

-0.107

0.037

0.114

     

(0.860)

(0.437)

(0.679)

(0.777)

(0.507)

(0.822)

(0.483)

 

serum PSA

0.020

0.125

-0.038

1

1

1

0.117

-0.107

0.024

0.336

  

(0.860)

(0.437)

(0.679)

   

(0.298)

(0.507)

(0.884)

(0.034)

clinical follow-up

SP Dkk-3

-0.241

-0.104

-0.430

-0.100

-0.327

-0.174

0.080

-0.307

0.336

0.123

   > 3 yr

 

(0.054)

(0.620)

(0.026)

(0.506)

(0.111)

(0.450)

(0.596)

(0.135)

(0.137)

(0.595)

 

SP PSA

1

1

1

0.043

0.219

-0.099

0.099

0.071

0.169

0.181

     

(0.777)

(0.293)

(0.668)

(0.511)

(0.844)

(0.465)

(0.431)

 

serum PSA

-0.100

0.219

-0.099

1

1

1

0.085

0.312

0.018

0.491

  

(0.506)

(0.293)

(0.668)

   

(0.572)

(0.129)

(0.938)

(0.024)

  1. SP, seminal plasma; PSA, prostate-specific antigen; neg, negative biopsy; pos, positive biopsy; r, correlation coefficient.
  2. Correlations were calculated by Pearson correlation analysis except for *Spearman's rank correlation analysis.