. Author manuscript; available in PMC: 2010 Apr 29.

Published in final edited form as: J Urol. 2010 Feb 19;183(4):1360–1365. doi: 10.1016/j.juro.2009.12.015

Table 3.

Concordance probability and Spearman rank correlation between the rates of positive surgical margins and 5-year biochemical recurrence. 95% confidence intervals are given in parentheses.

		Number of surgeons	Number of patients	Concordance Probability (%)		Spearman rank correlation

				0% error	1% error
(1)	Main analyses	72	7765	58 (50, 62)	55 (49, 61)	0.29 (0.06, 0.49)
(2)	Patients treated after 1995	60	5107	53 (44, 57)	52 (42, 56)	0.19 (-0.07, 0.42)
(3)	(2) and surgeons with ≥ 40 total cases	38	4931	46 (34, 55)	45 (32, 53)	0.01 (-0.31, 0.33)
(4)	(3) and patients with organ confined disease	38	3637	49 (35, 55)	47 (33, 53)	0.12 (-0.20, 0.43)