Table 3.
Multivariable logistic regression of factors associated with the presence of histological subtype (adenocarcinoma as a reference).
| Variables | OR | 95% CI | p |
|---|---|---|---|
| AGE (YEARS) | |||
| <50 | 1 | ||
| ≥50 | 1.859 | 1.003-3.444 | 0.049 |
| GENDER | |||
| Male | 1 | ||
| Female | 2.591 | 1.763-3.806 | <0.001 |
| RACE/ETHNICITY | |||
| White | 1 | ||
| Black | 16.326 | 10.161-26.233 | <0.001 |
| Other | 8.106 | 4.466-14.712 | <0.001 |
| GRADE | |||
| G1 | 1 | ||
| G2 | 1.328 | 0.472-3.735 | 0.590 |
| G3-4 | 1.557 | 0.559-4.336 | 0.397 |
| LOCATION | |||
| Lower | 1 | ||
| Upper | 54.060 | 21.743-134.410 | <0.001 |
| Middle | 8.445 | 5.557-12.833 | <0.001 |
| Overlapping | 4.622 | 3.096-6.901 | <0.001 |
| TUMOR STAGE | |||
| T1-2 | 1 | ||
| T3-4 | 0.712 | 0.517-0.978 | 0.036 |
| REGIONAL LYMPH NODE STATUS | |||
| Node negative | 1 | ||
| Node positive | 0.886 | 0.595-4.36 | 0.397 |
| DISTANT LYMPH NODE METASTASIS | |||
| No | 1 | ||
| Yes | 0.827 | 0.584-1.170 | 0.283 |
| LIVER METASTASIS | |||
| No | 1 | ||
| Yes | 0.559 | 0.406-0.769 | <0.001 |
| LUNG METASTASIS | |||
| No | 1 | ||
| Yes | 1.832 | 1.331-2.521 | <0.001 |
| BRAIN METASTASIS | |||
| No | 1 | ||
| Ye | 0.247 | 0.096-0.633 | 0.004 |
| BONE METASTASIS | |||
| No | 1 | ||
| Yes | 0.909 | 0.624-1.324 | 0.618 |
CI, confidence interval; G1, well-differentiated; G2, moderately differentiated; G3, poorly differentiated; G4, undifferentiated; OR, odds ratio; T, tumor.