Table 2.

Tumor characteristics

Continuous variables, median (5th-95th percentile)
Age at diagnosis (y)64.6 (54.6-71.2)
Time between blood draw and diagnosis (y)6.9 (1.0-13.7)
PSA at diagnosis (ng/mL)11 (4-145)
PSA at blood draw (ng/mL)3.6 (1.1-20.6)
Fraction of malign tissue in biopsy7.0% (0%-60%)
Discrete variables, n (%)
Mode of diagnosisHealth checkup125 (23%)
Symptoms, other reasons411 (77%)
Missing28
StageT1284 (52%)
T2187 (34%)
T366 (12%)
T46 (1%)
TX25
Lymph node metastasisN0169 (92%)
N114 (4%)
NX395
Distant metastasisM0328 (88%)
M143 (12%)
MX197
Gleason score<7307 (63%)
7135 (28%)
>743 (9%)
Missing83
High-risk/low-risk cancer*Low risk436 (77%)
High risk132 (23%)
  • * High-risk cancer defined as T3 or T4, lymph node metastasis, distant metastasis, Gleason score ≥8, or PSA at diagnosis >50 ng/mL; low-risk cases defined as the absence of all of these factors.