Table 1 Patient characteristics

Age (years)

 Average

71

 Min to max

57 to 86

 Median

72

Initial PSA level (ng/ml)

 Average

14.77

 Min to max

1.5 to 63

 Median

9.80

PSA level; at the time of the PET/CT request (ng/ml)

 Average

6.43

 Min to max

0.35 to 154

 Median

2.73

Gleason score

 ≤7

56

 >7

4

 NA

5

TNM Stage

 Any T2Nx

2

 Any T2N0M0

18

 Any T2N1M0

1

 Any T1c N0 or Nx

15

 Any T3N0M0

8

 Any T3N1

5

 Any T3Nx

3

 NA

8

Initial treatment

 Surg. Only

9

 Surg. A nd RT

8

 Surg. RT and HT

2

 RT only

34

 Brachytherapy only

5

Time to double PSA (months)

 >12 months

6

 = 12 months

8

 <12 months

5

 <6 months

4

 ≤3 months

5

 NA

32

Velocity (ng/ml/year)

 Average

2.87

 Min to max

0.05 to 15.45

 Median

2.03