TABLE 6.

Crude and multivariate-adjusted hazard ratios and 95% confidence intervals for associations between race/socioeconomic status and time to biochemical recurrence (n=888 events).

Race/SES (quartiles from lowest to highest)	Crude Model		Model 1		Model 2
	HR (95% CI)	P*	HR (95% CI)	P*	HR (95% CI)	P*
Black v white	1.20 (1.05–1.38)	0.009	1.21 (1.04–1.40)	0.016	1.19 (1.02–1.39)	0.023
Income		0.001		0.264		0.795
1	1.0		1.0		1.0
2	0.96 (0.80–1.15)		1.00 (0.83–1.20)		1.01 (0.84–1.22)
3	0.92 (0.77–1.10)		0.97 (0.80–1.17)		1.01 (0.84–1.22)
4	0.74 (0.61–0.89)		0.90 (0.73–1.10)		0.98 (0.80–1.20)
Black v white	1.20 (1.05–1.38)	0.009	1.23 (1.05–1.42)	0.008	1.22 (1.04–1.42)	0.012
Education		0.592		0.564		0.101
1	1.0		1.0		1.0
2	1.05 (0.88–1.27)		0.94 (0.78–1.14)		1.08 (0.89–1.31)
3	0.98 (0.81–1.18)		1.00 (0.83–1.22)		1.18 (0.97–1.43)
4	0.97 (0.81–1.17)		1.04 (0.86–1.26)		1.15 (0.95–1.40)
Black v white	1.20 (1.05–1.38)	0.009	1.20 (1.03–1.39)	0.022	1.19 (1.02–1.39)	0.030
Employment		0.356		0.208		0.549
1	1.0		1.0		1.0
2	0.95 (0.79–1.14)		0.92 (0.76–1.11)		1.02 (0.84–1.23)
3	0.93 (0.77–1.12)		0.94 (0.77–1.15)		0.96 (0.78–1.18)
4	0.92 (0.77–1.11)		0.87 (0.71–1.06)		0.94 (0.77–1.16)
Black v white	1.20 (1.05–1.38)	0.009	1.19 (1.02–1.39)	0.029	1.18 (1.01–1.37)	0.040
Poverty		0.070		0.169		0.562
1	1.0		1.0		1.0
2	0.89 (0.74–1.06)		0.88 (0.73–1.07)		0.87 (0.72–1.06)
3	0.95 (0.79–1.14)		0.93 (0.76–1.13)		0.97 (0.80–1.19)
4	0.82 (0.68–0.99)		0.86 (0.71–1.05)		0.93 (0.76–1.13)

NOTE. Model 1 is a Cox proportional hazards model adjusted for age, year of surgery, SES measure, BMI, PSA, clinical stage, biopsy Gleason sum, race, and center. Model 2 is a Cox proportional hazards model adjusted for age, year of surgery, SES measure, BMI, PSA, pathologic Gleason sum, race, center, PSM, ECE, and SVI.

ABBREVIATIONS. SES=socioeconomic status; HR=hazards ratio; CI=confidence interval.

^*p-values for SES measures are for trends across SES quartiles.