Table 1 –

Patient demographics at diagnosis, and disease characteristics on diagnostic and 3-yr biopsies (N = 207)

	Diagnostic biopsy	Biopsy at 3 yr
Age (yr)	61 (57, 66)
Race
White	174 (84%)
Black	20 (10%)
Asian	3 (1.4%)
Other/unreported	10 (4.8%)
PSA (N = 196)	4.4 (3.6, 5.5)
NCCN risk category (N = 197)
Very low risk	140 (71%)
Low risk	57 (29%)
Clinical T classification	N = 207	N = 207
≤T1c	183 (88%)	182 (88%)
>T1c	24 (12%)	25 (12%)
Biopsy grade group
No cancer	0 (0%)	48 (23%)
1	207 (100%)	93 (45%)
2	0 (0%)	55 (27%)
3	0 (0%)	10 (4.8%)
4	0 (0%)	1 (0.5%)
Number of positive biopsy cores	N = 206	N = 207
	1 (1, 2)	2 (1, 4)
Total number of biopsy cores taken	N = 206	N = 207
	12 (7, 13)	15 (14, 16)
Maximum percent cancer	N = 200	N = 155
	10 (5, 20)	25 (10, 50)
Total length of cancer (mm)	N = 196	N = 155
	1.5 (0.8, 3.0)	3.5 (1.5, 6.3)
MRI score
≤2	83 (40%)	72 (35%)
3	77 (37%)	74 (36%)
4	45 (22%)	53 (26%)
5	2 (1.0%)	8 (3.9%)
Presence of EPE on MRI	5 (2.4%)	9 (4.3%)

EPE = extraprostatic extension; MRI = magnetic resonance imaging; NCCN = National Comprehensive Cancer Network; PSA = prostate-specific antigen.

Data are presented as median (quartiles) or frequency (%).