Timo Soeterik

145 MRI T-stage for LNI Risk Prediction TABLE 1. Baseline characteristics of the validation cohort Overall pN0 pN1 No. of patients 1062 (100) 761 (72) 301 (28) Hospital N (%) SAH HGT CWH 258 (24) 246 (23) 558 (53) 186 (24) 159 (21) 416 (55) 72 (24) 87 (29) 142 (47) Median (IQR) age, years 67 (63 - 71) 68 (63 - 71) 67 (63 - 71) Median (IQR) PSA, ng/mL 10 (6.6 – 18) 9.3 (6.2 – 16) 13 (7.8 – 22) Median (IQR) total cores Data on total cores missing N (%) 10 (10 - 12) 5 (0) 10 (9 – 12) 4 (1) 10 (10 – 12) 1 (0) Total positive cores Data on positive cores missing N (%) 5 (3 – 8) 6 (1) 5 (3 – 7) 5 (1) 7.1 (3.3) 1 (0) Percentage of positive cores (%) Data on percentage of positive cores missing N (%) 0.50 (0.33 – 0.75) 7 (1) 0.50 (0.25 – 0.67) 6 (1) 0.75 (50 - 100) 1 (0) Biopsy ISUP grade N (%) 1 2 3 4 5 Missing 78 (7) 245 (23) 280 (26) 253 (24) 201 (19) 5 (0) 65 (9) 191 (25) 202 (27) 189 (25) 110 (14) 4 (0) 13 (4) 54 (18) 78 (26) 64 (21) 91 (30) 1 (0) DRE T-stage N (%) T1c T2a T2b T2c T3a T3b T4 Missing 384 (36) 328 (31) 84 (8) 77 (7) 169 (16) 7 (1) 3 (0) 10 (1) 301 (40) 248 (33) 57 (7) 52 (7) 103 (14) 3 (0) 1 (0) 6 (1) 83 (28) 80 (27) 27 (9) 35 (12) 66 (22) 4 (1) 2 (0) 4 (1) mpMRI T-stage N (%) T1c T2a T2b T2c T3a T3b T4 Missing 40 (4) 301 (28) 41 (4) 120 (11) 376 (35) 160 (15) 22 (2) 2 (0) 36 (5) 250 (33) 29 (4) 103 (14) 261 (34) 69 (9) 12 (2) 1 (0) 4 (1) 51 (17) 12 (4) 17 (6) 115 (38) 91 (30) 10 (3) 1 (0) 8