Appendix Table 2.

Characteristics of the cohort by surgical approach

	MIRP		ORP
	No.	%	No.	%	p-value
Total N	3,199	32%	6,795	68%
Age at diagnosis					<0.0001
66–69	1,797	56%	3,689	54%
70–74	1,129	35%	2,351	35%
75–59	249	8%	598	9%
80+	24	1%	157	2%
Race					<0.0001
White	2,767	86%	5,913	87%
Black	165	5%	455	7%
Other	267	8%	427	6%
Census tract median income					<0.0001
1st quartile	611	19%	1,844	27%
2nd quartile	682	21%	1,775	26%
3rd quartile	839	26%	1,617	24%
4th quartile	1,028	32%	1,430	21%
Unknown	39	1%	129	2%
Urban-rural residence					<0.0001
Metropolitan	2,884	90%	5,673	83%
Non-metropolitan	315	10%	1,122	17%
Region					<0.0001
Northeast	517	16%	828	12%
South	582	18%	1,041	15%
Midwest	366	11%	821	12%
West	1,834	57%	4,105	60%
Marital status					<0.0001
Married	2,564	80%	5,465	80%
Not married	430	13%	1,029	15%
Unknown	205	6%	301	4%
Clinical T-stage					<0.0001
T1	1,857	58%	3,042	45%
T2	1,264	40%	3,313	49%
T3/T4	54	2%	155	2%
Unknown	24	1%	285	4%
Gleason score					<0.0001
2–6	1,160	36%	3,012	44%
7+	2,024	63%	3,733	55%
Unknown	15	0%	50	1%
Lymph node involvement					<0.0001
Negative	3,092	97%	6,524	96%
Positive	30	1%	189	3%
Unknown	77	2%	82	1%
Androgen deprivation therapy					<0.0001
Yes	393	12%	1,044	15%
No	2,806	88%	5,751	85%
Charlson comorbidity score					0.0002
0	2,575	80%	5,219	77%
1	466	15%	1,169	17%
2+	158	5%	407	6%
Previous hernia					0.7101
Yes	191	6%	393	6%
No	3,008	94%	6,402	94%
Surgery year					<0.0001
2003	112	4%	1,320	19%
2004	333	10%	1,563	23%
2005	517	16%	1,332	20%
2006	791	25%	1,206	18%
2007	1,176	37%	1,189	17%
2008	270	8%	185	3%

MIRP: Minimally invasive radical prostatectomy

ORP: Open radical prostatectomy