Table 3. Subgroup multivariate regression analysis for PCSM for each race, using the proportional hazards model described by Fine and Gray, accounting for OCM as a competing risk for PCSM.

	AsA		AA		NHW
	AHR [95% CI]	p	AHR [95% CI]	p	AHR [95% CI]	p
Gleason Score:
8	1.000		1.000		1.000
9	2.005 [1.176-3.420]	0.011	2.821 [2.138-3.723]	<0.001	2.024 [1.779-2.302]	<0.001
10	2.287 [0.637-8.220]	0.200	5.051 [3.017-8.455]	<0.001	4.448 [3.479-5.687]	<0.001
Treatment:
EBRT+BT	1.000		1.000		1.000
RP	0.894 [0.372-2.150]	0.800	0.596 [0.382-0.931]	0.023	0.810 [0.648-1.013]	0.065
EBRT	1.307 [0.563-3.030]	0.530	0.997 [0.670-1.486]	0.990	1.338 [1.087-1.646]	0.006
T stage:
T1	1.000		1.000		1.000
T2	1.631 [0.917-2.900]	0.096	1.193 [0.892-1.596]	0.240	1.225 [1.070-1.403]	0.003
T3	1.400 [0.505-3.880]	0.520	2.426 [1.637-3.594]	<0.001	1.956 [1.610-2.377]	<0.001
T4	6.214 [1.731-22.31]	0.005	2.688 [1.237-5.842]	0.013	3.149 [1.961-5.056]	<0.001
Age at diagnosis:	1.002 [0.968-1.040]	0.930	1.000 [0.982-1.018]	1.000	1.007 [0.998-1.015]	0.120
Year of diagnosis:	0.892 [0.758-1.050]	0.170	0.952 [0.888-1.020]	0.160	0.906 [0.878-0.934]	<0.001