Table 2.
Thyroid Cancer Age-Adjusted Incidence Rates (AAIRs) per 100,000 Person-Years for Tumor and Patient Characteristics by Race/Ethnicity, SEER18 (2007-2014)
| White | Africian American |
Asian | Hispanic | Native American | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
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| Characteristic | Category | AAIR | 95% CI | AAIR | 95% CI | AAIR | 95% CI | AAIR | 95% CI | AAIR | 95% CI |
| Year of Diagnosis | 2007–2014 | 15.1 | 15.0–15.3 | 8.4 | 8.2–8.6 | 13.6 | 13.3–13.8 | 12.2 | 12.0–12.5 | 10.1 | 9.2–11.0 |
| 2007–2010 | 14.2 | 14.1–14.4 | 7.6 | 7.3–7.9 | 12.9 | 12.5–13.3 | 11.4 | 11.1–11.7 | 8.8 | 7.7–10.1 | |
| 2011–2014 | 16.0 | 15.9–16.2 | 9.1 | 8.8–9.5 | 14.2 | 13.8–14.6 | 13.0 | 12.7–13.3 | 11.3 | 10.0–12.6 | |
|
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| Age (years) | 15–39 | 12.9 | 12.7–13.1 | 5.0 | 4.8–5.3 | 10.3 | 9.9–10.7 | 8.8 | 8.6–9.1 | 9.4 | 8.1–10.9 |
| 40–54 | 24.8 | 24.4–25.1 | 13.4 | 12.9–14.0 | 22.3 | 21.6–23.1 | 19.0 | 18.5–19.6 | 14.5 | 12.4–16.9 | |
| 55–64 | 25.9 | 25.4–26.3 | 7.8 | 16.9–18.7 | 23.5 | 22.4–24.6 | 22.7 | 21.7–23.7 | 16.0 | 12.9–19.5 | |
| 65–74 | 27.1 | 26.5–27.6 | 20.2 | 18.9–21.6 | 27.1 | 25.6–28.7 | 26.9 | 25.4–28.4 | 17.3 | 12.9–22.7 | |
| 75–84 | 20.1 | 19.4–20.7 | 13.9 | 12.4–15.6 | 21.5 | 19.7–23.5 | 21.9 | 20.1–23.8 | 19.2 | 12.5–28.1 | |
| ≥85 | 10.8 | 10.2–11.5 | 10.1 | 8.0–12.5 | 13.7 | 11.4–16.4 | 12.1 | 9.8–14.7 | |||
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| Gender | Male | 7.9 | 7.8–8.0 | 3.6 | 3.4–3.9 | 6.4 | 6.2–6.7 | 5.1 | 4.9–5.4 | 4.5 | 3.7–5.5 |
| Female | 22.4 | 22.2–22.6 | 12.5 | 12.1–12.8 | 19.8 | 19.3–20.2 | 19.3 | 18.9–19.6 | 15.2 | 13.7–16.8 | |
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| Insurance Status | Insured | 13.6 | 13.5–13.7 | 6.6 | 6.4–6.7 | 11.2 | 11.0–11.5 | 8.8 | 8.7–9.0 | 6.7 | 6.0–7.5 |
| Medicaid | 0.9 | 0.8–0.9 | 1.2 | 1.1–1.3 | 1.7 | 1.6–1.8 | 2.4 | 2.3–2.5 | 2.8 | 2.4–3.3 | |
| Uninsured | 0.3 | 0.2–0.3 | 0.4 | 0.3–0.4 | 0.3 | 0.3–0.4 | 0.7 | 0.7–0.8 | |||
| Unknown | 0.4 | 0.4–0.4 | 0.3 | 0.2–0.3 | 0.3 | 0.3–0.4 | 0.3 | 0.3–0.3 | |||
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| Histology at Diagnosis | Papillary | 13.4 | 13.3–13.5 | 6.8 | 6.6–7.0 | 12.1 | 11.9–12.4 | 10.8 | 10.6–11.0 | 8.8 | 8.0–9.6 |
| Follicular | 0.6 | 0.6–0.6 | 0.4 | 0.4–0.5 | 0.4 | 0.4–0.5 | 0.4 | 0.4–0.5 | 0.5 | 0.3–0.8 | |
| Medullary | 0.3 | 0.3–0.3 | 0.2 | 0.2–0.2 | 0.1 | 0.1–0.2 | 0.2 | 0.2–0.3 | |||
| Anaplastic | 0.1 | 0.1–0.1 | 0.1 | 0.1–0.1 | 0.2 | 0.1–0.2 | 0.1 | 0.1–0.2 | |||
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| AJCC 6th Ed. Stage at Diagnosis | I | 14.9 | 14.7–15.1 | 6.5 | 6.3–6.8 | 12.3 | 11.9–12.7 | 10.3 | 10.0–10.5 | 10.5 | 9.2–11.9 |
| II | 1.9 | 1.8–1.9 | 1.4 | 1.2–1.5 | 1.4 | 1.2–1.5 | 1.5 | 1.4–1.7 | 1.6 | 1.1–2.4 | |
| III | 3.1 | 3.0–3.2 | 1.9 | 1.7–2.1 | 3.9 | 3.6–4.1 | 3.6 | 3.4–3.8 | 2.3 | 1.6–3.2 | |
| IV | 1.8 | 1.8–1.9 | 1.3 | 1.1–1.4 | 2.8 | 2.6–3.0 | 3.0 | 2.8–3.2 | 2.3 | 1.6–3.1 | |
| Unknown/NA | 0.7 | 0.6–0.7 | 0.5 | 0.4–0.6 | 0.8 | 0.7–0.8 | 0.7 | 0.6–0.7 | 0.7 | 0.4–0.9 | |
|
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| Tumor Size at Diagnosis (mm) | 0–19 | 11.8 | 11.7–12.0 | 5.5 | 5.3–5.7 | 9.7 | 9.5–10.0 | 8.8 | 7.9–8.3 | 6.1 | 5.4–7.0 |
| 20–29 | 2.8 | 2.8–2.9 | 1.3 | 1.2–1.4 | 2.8 | 2.7–2.9 | 2.5 | 2.4–2.6 | 2.2 | 1.7–2.7 | |
| 30–39 | 1.5 | 1.5–1.6 | 0.9 | 0.8–1.0 | 1.5 | 1.4–1.7 | 1.5 | 1.4–1.6 | 1.1 | 0.8–1.5 | |
| 40–49 | 0.9 | 0.8–0.9 | 0.7 | 0.6–0.8 | 0.9 | 0.8–1.0 | 0.9 | 0.8–0.9 | 0.9 | 0.8–1.2 | |
| 50–59 | 0.5 | 0.4–0.5 | 0.4 | 0.4–0.5 | 0.6 | 0.5–0.6 | 0.6 | 0.5–0.6 | |||
| ≥60 | 0.6 | 0.6–0.6 | 0.9 | 0.8–1.0 | 0.7 | 0.6–0.7 | 0.9 | 0.8–0.9 | 0.7 | 0.5–1.0 | |
| Unknown | 0.6 | 0.6–0.7 | 0.7 | 0.6–0.7 | 0.7 | 0.6–0.7 | 0.5 | 0.5–0.6 | 0.7 | 0.5–1.0 | |
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| Tumor Sequence | First Cancer | 13.1 | 13.0–13.2 | 7.3 | 7.1–7.5 | 12.2 | 11.9–12.4 | 10.8 | 10.6–11.0 | 8.7 | 7.9–9.5 |
| Second Cancer | 2.0 | 2.0–2.1 | 1.1 | 1.1–1.3 | 1.4 | 1.3–1.5 | 1.4 | 1.3–1.5 | 1.4 | 1.1–1.8 | |
Abbreviations: AJCC, American Joint Committee on Cancer; AAIR, age-adjusted incidence rate; CI, confidence interval; NA, not available; SEER 18, Surveillance, Epidemiology, and End Results Program 18 database. AAIRs are not provided if there were <25 cases available to use in the calculation.