Table 1.

Patient characteristics.

	N=261
Age at surgery, yrs	61 (56, 66)
Pre-operative PSA, ng/mL	7.9 (5.2, 13.6)
Clinical T stage
T1b	1 (<1%)
T1c	65 (25%)
T2	137 (52%)
T3	53 (20%)
T4	1 (<1%)
TX/missing	4 (2%)
Pathological RP specimen Gleason score
6	2 (1%)
7	124 (48%)
8-9	135 (52%)
Extraprostatic extension	239 (92%)
Seminal vesicle invasion	112 (43%)
Positive surgical margins	94 (36%)
Histopathological lymph node review
Extranodal extension, n=194	89 (46%)
Number of lymph nodes removed (nodal yield)	14 (9, 20) Range:2-48
Number of positive lymph nodes	1 (1, 2) Range: 1-18
Positive lymph nodes, categorical
1 LN+	155 (59%)
2 LN+	57 (22%)
≥3 LN+	49 (19%)
Maximum diameter of largest metastatic LN, mm, n=188	9 (5, 16)
Lymph node density, %, n=261	11 %(7%, 19%)
Maximum diameter of largest metastatic focus in LN, mm, n=96	3 (2, 6) Range: 0.4-21

Values presented are median (IQR) or frequency (%). LN= lymph node