Table 1.

Incidence rates of thyroid cancer by race, sex, and histology 1980–2005, SEER-9 registries.

	Whites				Blacks
	Female		Male		Female		Male
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.

^aP <0.05 in comparison to same-sex Whites.

^bP <0.01 in comparison to same-race females.

-Rates were not calculated when counts were less than 10.