Table 5. Pathologic and oncologic outcomes.

Variables	Median (interquartile range) or counts (%)		P
	OPN (N = 64)	RPN (N = 85)
Tumor size (cm)	3.1 (2.3–4.8)	4.3 (2.9–5.2)	0.014
Pathological stage	4 (6.3%)	1 (1.2%)	0.165
pT1	57 (89.1%)	74 (87.1%)
pT2	3 (4.7%)	10 (11.8%)
pT3	4 (6.3%)	1 (1.2%)
Fuhrmann grade			0.386
≤ 2	36 (56.3%)	40 (47.1%)
≥ 3	28 (43.8%)	45 (52.9%)
Histological subtype			0.203
Clear cell	50 (78.1%)	65 (76.5%)
Papillary	3 (4.7%)	1 (1.2%)
Chromophobe	3 (4.7%)	10 (11.8%)
Collecting duct	0 (0%)	0 (0%)
Unclassified	0 (0%)	2 (2.4%)
Benign	8 (12.5%)	7 (8.2%)
Positive surgical margin	1 (1.6%)	0 (0%)	0.432
Recurrence	2 (3.1%)	4 (4.7%)	0.306
Overall mortality	3 (4.7%)	0 (0%)	0.077
Follow-up duration, months	53.0 (33.3–81.0)	15.0 (5.5–33.0)	<0.001

OPN, open partial nephrectomy; RPN, robotic partial nephrectomy