Table 1.

Characteristics of the training and validation sets of men undergoing prostate biopsy

	Training set	Validation set	P
Patients, n	237	237	−
Age range, years (median)	41.8–84.5 (64.5)	46.9–83.1 (63.6)	0.599
Prostate volume range, mL (median)	35–220 (50)	35–250 (50)	0.946
Total PSA range, ng/mL (median)	2.08–10.00 (5.8)	2.24–10.0 (6.14)	0.536
PCa diagnosis, n (%)	130 (54.9)	108 (45.6)	0.044
Biopsy GS
3 + 3, n (%)	78 (60)	54 (50)	0.004
3 + 4, n (%)	32 (24.6)	34 (31.5)
≥4 + 3, n (%)	20 (15.4)	20 (18.5)
GS in prostatectomy specimen
3 + 3, n (%)	31 (23.8)	22 (20.4)	0.130
3 + 4, n (%)	78 (60)	74 (68.5)
≥4 + 3, n (%)	21 (16.2)	12 (11.1)

GS, Gleason score; PCa, prostate cancer.