| Site | Socioeconomic status quintile* | Hazard ratio (95% CI) | Gross median household income, 2010 constant dollars | Hazard ratio (95% CI) |
|---|---|---|---|---|
| All cancers | 1 (poorest) | 0.988 (0.987-0.990) | 20 000 | 0.991 (0.989-0.993) |
| 2 | 0.983 (0.982-0.985) | 40 000 | 0.985 (0.983-0.988) | |
| 3 | 0.980 (0.978-0.981) | 60 000 | 0.980 (0.977-0.983) | |
| 4 | 0.977 (0.975-0.979) | 80 000 | 0.975 (0.971-0.978) | |
| 5 (richest) | 0.969 (0.967-0.971) | 100 000 | 0.969 (0.966-0.973) | |
| Breast | 1 | 0.980 (0.975-0.986) | 20 000 | 0.985 (0.981-0.988) |
| 2 | 0.974 (0.968-0.976) | 40 000 | 0.979 (0.975-0.983) | |
| 3 | 0.968 (0.962-0.973) | 60 000 | 0.974 (0.970-0.978) | |
| 4 | 0.966 (0.960-0.972) | 80 000 | 0.968 (0.964-0.973) | |
| 5 | 0.957 (0.951-0.964) | 100 000 | 0.963 (0.958-0.968) | |
| Lung | 1 | 0.997 (0.995-1.000) | 20 000 | 0.997 (0.995-0.999) |
| 2 | 0.997 (0.995-1.000) | 40 000 | 0.992 (0.989-0.994) | |
| 3 | 0.995 (0.992-0.997) | 60 000 | 0.986 (0.983-0.989) | |
| 4 | 0.996 (0.992-0.997) | 80 000 | 0.981 (0.977-0.984) | |
| 5 | 0.986 (0.982-0.990) | 100 000 | 0.975 (0.971-0.979) | |
| Colon-rectum | 1 | 0.982 (0.978-0.985) | 20 000 | 0.987 (0.984-0.989) |
| 2 | 0.978 (0.975-0.982) | 40 000 | 0.981 (0.978-0.984) | |
| 3 | 0.975 (0.971-0.979) | 60 000 | 0.976 (0.972-0.979) | |
| 4 | 0.971 (0.966-0.975) | 80 000 | 0.970 (0.967-0.974) | |
| 5 | 0.963 (0.958-0.968) | 100 000 | 0.965 (0.961-0.969) | |
| Head and neck | 1 | 0.990 (0.983-0.996) | 20 000 | 0.996 (0.991-1.000) |
| 2 | 0.988 (0.981-0.995) | 40 000 | 0.990 (0.985-0.995) | |
| 3 | 0.985 (0.978-0.993) | 60 000 | 0.985 (0.979-0.990) | |
| 4 | 0.979 (0.970-0.988) | 80 000 | 0.979 (0.974-0.984) | |
| 5 | 0.969 (0.958-0.979) | 100 000 | 0.974 (0.968-0.979) |
Note: CI = confidence interval.
*Distinct from gross median household income.