Table 2b:
Odds of lymph nodal metastasis, unadjusted and adjusted models (SEER 1975–2017)
| Odds of lymph node metastasis | Unadjusted | Adjusted | ||
|---|---|---|---|---|
| Characteristics | OR | 95% CI | OR | 95% CI |
| Age categories | ||||
| - <40 | 2.08 | 2.04–2.12 | 1.74 | 1.71–1.78 |
| - 40–49 | 1.48 | 1.46–1.50 | 1.39 | 1.37–1.41 |
| - 50–59 | 1.26 | 1.24–1.27 | 1.22 | 1.20–1.23 |
| - 60–69 | 1 | ref | 1 | ref |
| - 70+ | 0.86 | 0.85–0.87 | 0.87 | 0.85–0.89 |
| Race | ||||
| - White | 1 | ref | 1 | ref |
| - American Indian/Alaska Native | 1.21 | 1.13–1.28 | 1.14 | 1.06–1.21 |
| - Asian or Pacific Islander | 0.99 | 0.97–1.01 | 0.92 | 0.91–0.94 |
| - African American | 1.41 | 1.39–1.43 | 1.23 | 1.21–1.25 |
| - Unknown | 0.77 | 0.71–0.83 | 0.76 | 0.70–0.81 |
| Grade | ||||
| - Well differentiated; Grade I | 1 | ref | 1 | ref |
| - Moderately differentiated; Grade II | 2.26 | 2.23–2.30 | 2.2 | 2.17–2.24 |
| - Poorly differentiated; Grade III | 3.63 | 3.57–3.70 | 3.31 | 3.18–3.57 |
| - Undifferentiated; anaplastic; Grade IV | 3.84 | 3.67–4.01 | 3.53 | 3.38–3.69 |
| - Unknown | 3.32 | 3.25–3.39 | 3.23 | 3.17–3.30 |