Table 4.

Risk of biochemical recurrence by margin status and pT derived from competing risk regression models.

Margin status and pT	Relative to pT2 clear margin			PSM vs. clear margina
	sHR	95% CI	p-Value	sHR	95% CI	p-Value
pT2
Clear margins	1.0	Reference	–	1.0	Reference	–
Positive margin	4.3	3.2–5.9	<0.001	4.6	3.2–6.2	<0.001
pT3a
Clear margin	2.2	1.7–2.9	<0.001	1.0	Reference	–
Positive margin	5.5	4.2–7.2	<0.001	2.6	2.0–3.3	<0.001
pT3b
Clear margin	4.9	3.4–7.0	<0.001	1.0	Reference	–
Positive margin	7.1	5.0–10.0	<0.001	1.4	1.0–2.0	0.06

CI, confidence interval; sHR, sub-hazard ratio; pT, pathological tumor stage; PSM, positive surgical margin; –, not available.

Note: the “Reference” indicates that this category is the reference category.

^aStratified by stage category.