Table 6.
Multivariable logistic regression for the presence of liver metastases at diagnosis by cancer type
| Categories | OR (95% CI) | P |
|---|---|---|
| Age at diagnosis (years) | ||
| 18-40 | Ref | |
| 41-60 | 1.137 (1.088-1.188) | < 0.001 |
| 61-80 | 1.099 (1.052-1.148) | < 0.001 |
| >80 | 0.955 (0.911-1.001) | = 0.05 |
| Sex | ||
| Male | Ref | |
| Female | 0.877 (0.862-0.891) | < 0.001 |
| Race | ||
| White | Ref | |
| African American | 1.133 (1.107-1.159) | < 0.001 |
| American Indian | 0.889 (0.800-0.987) | < 0.001 |
| API | 0.876 (0.850-0.902) | < 0.05 |
| Unknown | 0.405 (0.352-0.466) | < 0.001 |
| Marital status | ||
| Married | Ref | |
| Unmarried | 1.059 (1.042-1.076) | < 0.001 |
| Unknown | 0.927 (0.894-0.962) | < 0.001 |
| Insurance Status | ||
| Insured | Ref | |
| Uninsured | 1.186 (1.141-1.233) | < 0.001 |
| Unknown | 0.721 (0.683-0.760) | < 0.001 |
| Tumor Stage | ||
| 1 | Ref | |
| 2 | 1.565 (1.520-1.612) | < 0.001 |
| 3 | 1.395 (1.356-1.435) | < 0.001 |
| 4 | 2.002 (1.943-2.062) | < 0.001 |
| Unknown | 4.427 (4.296-4.561) | < 0.001 |
| Nodal Stage | ||
| 0 | Ref | |
| 1 | 1.953 (1.914-1.993) | < 0.001 |
| 2 | 2.354 (2.296-2.413) | < 0.001 |
| 3 | 1.906 (1.836-1.978) | < 0.001 |
| Unknown | 2.368 (2.299-2.438) | < 0.001 |
| Income | ||
| 1st quantile | Ref | |
| 2nd quantile | 0.925 (0.906-0.945) | < 0.001 |
| 3rd quantile | 0.996 (0.973-1.019) | = 0.744 |
| 4th quantile | 0.948 (0.926-0.970) | < 0.001 |
| Unknown | 1.235 (1.005-1.517) | < 0.05 |
| Unemployment | ||
| 1st quantile | Ref | |
| 2nd quantile | 0.986 (0.965-1.008) | = 0.199 |
| 3rd quantile | 0.955 (0.934-0.975) | < 0.001 |
| 4th quantile | 0.991 (0.967-1.016) | = 0.477 |
| Unknown | NA | NA |
| Bone metastasis | ||
| Yes | Ref | |
| No | 0.210 (0.205-0.215) | < 0.001 |
| Unknown | 0.638 (0.584-0.697) | < 0.001 |
| Brain metastasis | ||
| Yes | Ref | |
| No | 0.718 (0.694-0.743) | < 0.001 |
| Unknown | 1.950 (1.790-2.124) | < 0.001 |
| Lung metastasis | ||
| Yes | Ref | |
| No | 0.233 (0.228-0.238) | < 0.001 |
| Unknown | 0.866 (0.814-0.921) | < 0.001 |
Abbreviations: OR: odd ratio; CI: confidence interval; Ref: reference; API: Asian/pacific islander.