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. 2016 Nov 3;5(1):1905. doi: 10.1186/s40064-016-3584-4

Table 1.

Patients’ characteristics

Variable RRP (N = 97) HDR (N = 161) Cryo (N = 114) HIFU (N = 120) P value
Age, years (mean ± SD) 63.53 ± 6.71 71.92 ± 7.03 69.76 ± 6.49 68.06 ± 1.91 0.000
Preoperative prostate volume, mL (mean ± SD) 37.71 ± 16.97 37.48 ± 18.58 36.71 ± 16.94 21.97 ± 10.90 0.000
 iPSA, ng/mL (mean ± SD) 16.08 ± 23.38 23.34 ± 20.40 26.76 ± 49.33 17.04 ± 21.88 0.002
 iPSA ≤ 10 ng/mL, N (%) 40 (41.2) 39 (24.2) 39 (34.2) 54 (45.0) 0.000
 iPSA 10–20 ng/mL, N (%) 37 (38.1) 46 (28.6) 39 (34.2) 38 (31.7)
 iPSA ≥ 20 ng/mL, N (%) 20 (20.6) 76 (47.2) 36 (31.6) 28 (23.3)
Gleason score 0.002
 ≤6, N (%) 38 (39.2) 82 (50.9) 41 (36.0) 36 (30.0)
 7, N (%) 41 (42.3) 45 (28.0) 38 (33.3) 57 (47.5)
 ≥8, N (%) 18 (18.6) 34 (21.1) 35 (30.7) 27 (22.5)
T stage 0.000
 <T2b, N (%) 16 (16.5) 26 (16.1) 52 (45.6) 73 (60.8)
 T2b, N (%) 7 (7.2) 34 (21.1) 16 (14.0) 14 (11.7)
 >T2b, N (%) 74 (76.3) 101 (62.7) 46 (40.4) 33 (27.5)
D’Amico risk group 0.000
 Low, N (%) 9 (9.3) 6 (3.7) 19 (16.7) 15 (12.5)
 Intermediate, N (%) 10 (10.3) 32 (20.0) 24 (21.1) 47 (39.2)
 High, N (%) 78 (80.4) 123 (76.4) 71 (62.3) 58 (48.3)
IIEF-5 ≥ 17, preoperative, N (%) 38 (39.2) 34 (21.1) 50 (43.9) 32 (26.7) 0.000
IIEF-5, preoperativea (mean ± SD) 23.61 ± 2.13 22.88 ± 1.81 22.96 ± 2.44 22.10 ± 2.62 0.054
IPSS, preoperative (mean ± SD) 11.64 ± 8.84 8.51 ± 7.73 11.73 ± 7.53 10.16 ± 7.24 0.100
QoL, preoperative (mean ± SD) 3.60 ± 1.96 3.06 ± 2.01 3.11 ± 1.74 2.91 ± 1.69 0.266

RRP radical retropubic prostatectomy, HDR high dose rate brachytherapy, Cryo cryoablation, HIFU high-intensity focused ultrasound, SD standard deviation, iPSA initial prostate-specific antigen, IIEF-5 5-item version of the international index of erectile function, IPSS international prostate symptom score, QoL quality of life

aMean scores for IIEF-5 were restricted to those men who reported IIEF-5 ≥ 17 at baseline