Table 1 Demographic and clinical data of the PCa patients and cancer-free controls included in the training and validation sets

From: Identification of a biomarker panel for improvement of prostate cancer diagnosis by volatile metabolic profiling of urine

Characteristics

Prostate cancer

Control

Training set VOCs

External set VOCs

Training set VCCs

External set VCCs

Training set VOCs

External set VOCs

Training set VCCs

External set VCCs

Number of subjects

40

18

40

18

42

18

40

18

Mean Age ± SD (years)

64.4 ± 6.4

61.8 ± 5.2

63.7 ± 6.5

63.4 ± 5.3

59.3 ± 3.0

59.6 ± 2.62

59.3 ± 2.8

59.8 ± 2.7

PSA (ng/mL), n (%)

 <4

3 (7.5%)

1 (5.6%)

4 (22.2%)

 4–10

24 (60%)

13 (72.2%)

28 (70%)

9 (50%)

 >10

13 (32.5%)

4 (22.2%)

12 (30%)

5 (27.8%)

Gleason score, n (%)

 ≤6

6 (15%)

3 (16.7%)

8 (20%)

1 (5.6%)

 =7

25 (62.5%)

12 (66.7%)

24 (60%)

13 (72.2%)

 ≥8

9 (22.5%)

3 (16.7%)

8 (20%)

4 (22.2%)

Clinical stage, n (%)

 I

3 (7.5%)

3 (16.7%)

4 (10%)

2 (11.1%)

 II

2 (11.1%)

2 (4%)

 IIA

7 (17.5%)

4 (22.2%)

9 (22.5%)

2 (11.1%)

 IIB

15 (37.5%)

2 (11.1%)

11 (27.5%)

6 (33.3%)

 III

13 (32.5%)

5 (27.8%)

10 (25%)

8 (44.4%)

 IV

2 (5%)

2 (11.1%)

4 (10%)

Alcoholism, n (%)

7 (17.5%)

4 (22.2%)

9 (22.5%)

2 (11.1%)

3 (7.1%)

2 (5%)

1 (5.6%)

Smoking, n (%)

2 (5%)

2 (5%)

5 (11.9%)

2 (11.1%)

6 (15%)

1 (5.6%)

Obesity, n (%)

6 (15%)

4 (22.2%)

7 (17.5%)

3 (16.7%)

7 (16.7%)

3 (16.7%)

7 (17.5%)

2 (11.1%)

Cardiac condition, n (%)

5 (12.5%)

6 (33.3%)

7 (17.5%)

4 (22.2%)

1 (5.6%)

1 (5.6%)

AH, n (%)

21 (52.5%)

8 (44.4%)

19 (47.5%)

10 (55.6%)

14 (33.3%)

9 (50%)

20 (50%)

3 (16.7%)

Dyslipidemia, n (%)

16 (40%)

8 (44.4%)

14 (35%)

10 (55.6%)

16 (38.1%)

9 (50%)

16 (40%)

8 (44.4%)

Diabetes, n (%)

9 (22.5%)

3 (16.7%)

8 (20%)

4 (22.2%)

6 (14.3%)

1 (5.6%)

5 (12.5%)

1 (5.6%)

HTG, n (%)

2 (5%)

1 (2.5%)

1 (5.6%)

1 (2.4%)

1 (5.6%)

HC, n (%)

3 (7.5%)

1 (2.5%)

2 (11.1%)

4 (9.5%)

1 (5.6%)

3 (7.5%)

2 (11.1%)

BPH, n (%)

13 (31%)

4 (22.2%)

11 (27.5%)

4 (22.2%)

Prostatitis, n (%)

1 (2.4%)

1 (5.6%)

2 (5%)

  1. AH arterial hypertension, BPH benign prostatic hyperplasia, HC hypercholesteremia, HTG hypertriglyceridemia