TABLE 7.
Pre-operative multivariate-adjusted hazard ratios and 95% confidence intervals for associations between socioeconomic status and time to recurrence, stratified by race.
| SES (quartiles from lowest to highest) | Black (328 events)
|
White (560 events)
|
||
|---|---|---|---|---|
| HR (95% CI) | P* | HR (95% CI) | P* | |
| Income | 0.039 | 0.453 | ||
| 1 | 1.0 | 1.0 | ||
| 2 | 0.89 (0.66–1.20) | 1.09 (0.85–1.40) | ||
| 3 | 0.73 (0.53–0.99) | 1.11 (0.87–1.42) | ||
| 4 | 0.72 (0.50–1.03) | 0.94 (0.72–1.23) | ||
|
| ||||
| Education | 0.221 | 0.330 | ||
| 1 | 1.0 | 1.0 | ||
| 2 | 0.73 (0.54–0.99) | 1.04 (0.81–1.34) | ||
| 3 | 0.95 (0.69–1.31) | 1.05 (0.82–1.35) | ||
| 4 | 0.76 (0.55–1.06) | 1.13 (0.88–1.44) | ||
|
| ||||
| Employment | 0.075 | 0.355 | ||
| 1 | 1.0 | 1.0 | ||
| 2 | 0.82 (0.61–1.10) | 0.91 (0.70–1.17) | ||
| 3 | 0.77 (0.54–1.10) | 0.97 (0.75–1.26) | ||
| 4 | 0.76 (0.53–1.09) | 0.86 (0.66–1.12) | ||
|
| ||||
| Poverty | 0.048 | 0.408 | ||
| 1 | 1.0 | 1.0 | ||
| 2 | 0.95 (0.70–1.28) | 0.78 (0.60–1.02) | ||
| 3 | 0.71 (0.51–0.98) | 0.95 (0.74–1.23) | ||
| 4 | 0.77 (0.54–1.08) | 0.84 (0.65–1.09) | ||
NOTE. Each Cox proportional hazards model adjusted for age, year of surgery, SES measure, BMI, PSA, clinical stage, biopsy Gleason sum, and center.
ABBREVIATIONS. SES=socioeconomic status; HR=hazards ratio; CI=confidence interval.
*
p-values are for trends across SES quartiles.