Table 1.
Incidence rates of thyroid cancer by race, sex, and histology 1980–2005, SEER-9 registries.
Whites |
Blacks |
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---|---|---|---|---|---|---|---|---|
Female |
Male |
Female |
Male |
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Histology | Count | Rate | Count | Rate | Count | Rate | Count | Rate |
Overall | 24,764 | 9.59 | 8,557 | 3.59b | 1,743 | 5.28a | 458 | 1.84a,b |
Papillary | 20,559 | 8.00 | 6,532 | 2.70b | 1,276 | 3.80a | 299 | 1.16a,b |
Follicular | 2,872 | 1.10 | 1,217 | 0.53b | 353 | 1.10 | 106 | 0.47b |
Medullary | 533 | 0.20 | 349 | 0.15b | 33 | 0.10a | 24 | 0.09a |
Anaplastic | 303 | 0.11 | 189 | 0.09 | 18 | 0.07 | 11 | 0.05 |
Other specified | 206 | 0.08 | 141 | 0.06 | 16 | 0.06 | 9 | - |
Unspecified | 291 | 0.11 | 129 | 0.06b | 47 | 0.15a | 9 | - |
Age-adjusted (2000 US Standard Population) rates per 100,000 person-years.
P <0.05 in comparison to same-sex Whites.
P <0.01 in comparison to same-race females.
-Rates were not calculated when counts were less than 10.