Skip to main content

Table 1 Characteristics of the study cohort.

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

all patients

   

Characteristic

Negative biopsy

Positive biopsy

p value

Patients, N

41

40

 

Age*, yr

  

0.981

   Mean ± SEM

61.0 ± 1.3

61.5 ± 1.3

 

   Median (IQR)

62.5 (57.1 - 67.0)

61.9 (55.6 - 66.6)

 

serum PSA [ng/mL]

  

0.026

   Mean ± SEM

7.5 ± 1.0

11.6 ± 1.9

 

   Median (IQR)

6.2 (4.1 - 8.9)

7.3 (5.8 - 13.3)

 

SP Dkk-3 [fmol/mg]**

  

0.039

   Mean ± SEM

69.2 ± 9.4

100.9 ± 12.3

 

   Median (IQR)

55.7 (35.8 - 91.2)

74.5 (41.7 - 124.5)

 

SP PSA [μg/mg]**

  

0.317

   Mean ± SEM

23.8 ± 3.3

28.0 ± 3.5

 

   Median (IQR)

16.8 (8.1 - 35.9)

19.9 (10.8 - 42.5)

 

Biopsy Gleason score

   

   ≤ 6

 

6

 

   7

 

26

 

   ≥ 8

 

8

 

clinical follow-up > 3 yr

   

Characteristic

Negative biopsy

Positive biopsy

p value

Patients, N

25

21

 

Age*, yr

  

0.700

   Mean ± SEM

63.1 ± 1.6

61.6 ± 2.3

 

   Median (IQR)

64.0 (60.9 - 68.9)

60.5 (53.7 - 69.8)

 

serum PSA [ng/mL]

  

0.012

   Mean ± SEM

8.0 ± 1.6

14.3 ± 3.3

 

   Median (IQR)

6.2 (3.6 - 10.4)

9.2 (6.5 - 16.0)

 

SP Dkk-3 [fmol/mg]**

  

0.027

   Mean ± SEM

56.3 ± 8.4

100.0 ± 16.6

 

   Median (IQR)

49.6 (22.3 - 76.4)

76.3 (35.9 - 169.4)

 

SP PSA [μg/mg]**

  

0.474

   Mean ± SEM

23.4 ± 4.5

27.4 ± 5.1

 

   Median (IQR)

16.8 (7.3 - 40.1)

19.5 (12.7 - 35.0)

 

Biopsy Gleason score

   

   ≤ 6

 

3

 

   7

 

14

 

   ≥ 8

 

4

 
  1. SEM, standard error of the mean; IQR, interquartile range; PSA, prostate-specific antigen; SP, seminal plasma; * at time of ejaculate specimen; ** per total protein; p values determined by Mann-Whitney test.