Table 3.

Five-year biochemical recurrence–free survival (BFS) rates for detectable versus undetectable prostate-specific antigen (PSA) cut-off levels of 0.2, 0.1, 0.05, and 0.02 ng/ml taken 1–3 mo postprostatectomy

PSA level*		n at risk(total)	n at risk at 5 yr	BFS at 5 yr, %	CI for BFS at 5 yr, %	Log-rank p-value
≥0.02	Detectable	169	73	73	64–81	<0.01
<0.02	Undetectable	356	113	88	81–93
≥0.05	Detectable	69	27	67	50–79	<0.01
<0.05	Undetectable	456	160	86	80–90
≥0.1	Detectable	60	26	68	51–80	<0.01
<0.1	Undetectable	465	161	85	79–90
≥0.2	Detectable	17	6	50	21–74	<0.01
<0.2	Undetectable	508	175	85	79–89

CI = 95% confidence interval.

^*Total number of men (out of 525 total) with detectable and undetectable PSA levels at each PSA cut-off level listed at baseline and at 5 yr.