Table 2 Hazard ratio (HR) of cancer-specific mortality from breast cancer by socioeconomic status (SES)
Model 0 | Model 1 | Model 2 | Model 3 | Model 4 | Model 5 | |
|---|---|---|---|---|---|---|
Area-based SES group | SES only | Model 0 + age & year | Model 1 + stage | Model 2 + treatment | Model 3 + race | Model 4 + rural/urban |
HR & (CI†) | HR & (CI) | HR & (CI) | HR & (CI) | HR & (CI) | HR & (CI) | |
Highest | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
Upper middle | 1.05 (0.99-1.11) | 1.01 (0.96-1.07) | 1.00 (0.94-1.06) | 1.00 (0.95-1.06) | 0.99 (0.93-1.05) | 0.99 (0.93-1.05) |
Lower middle | 1.23 (1.16-1.29) | 1.09 (1.03-1.15) | 1.08 (1.03-1.14) | 1.07 (1.01-1.12) | 1.06 (1.00-1.12) | 1.04 (0.99-1.10) |
Lowest | 1.31 (1.24-1.38) | 1.19 (1.13-1.26) | 1.10 (1.04-1.16) | 1.08 (1.03-1.14) | 1.03 (0.97-1.08) | 1.03 (0.97-1.08) |
p-value for SES | <0.0001 | <0.0001 | <0.0001 | 0.003 | 0.07 | 0.20 |