Table 1: Demographic characteristics of the study group.

Group 1Group 2

Patient number ( )18530
Mean age ± SD (years) at sampling72.2 ± 9.076.4 ± 8.7
Median serum PSA (IQR) (ng/mL) at sampling1,32 (0,01–5,77)43,81 (27,72–150)
Median Gleason score at diagnosis (IQR) 6 (5–7)6 (5–7)
Median stage at diagnosis (IQR) 3 (2-3)3 (2-3)
Median time from diagnosis (IQR) (years)3 (1–7)6 (4–9)
% ( ) detection of prostate cells
 CPCs62.7% (116)100% (30)
 DTCs62.2% (115)100% (30)
 mM71.4% (132)100% (30)

IQR: interquartile range, CPCs: circulating prostate cells, and DTC: disseminated tumor cells.