Thyroid Cancer Incidence in New Jersey: Time Trend, Birth Cohort and Socioeconomic Status Analysis (1979–2006)

Table 2

(a) Female thyroid cancer incidence rates by birth cohort, year of diagnosis, and age, New Jersey, 1979–2006,𝑁=11,215^†.

Year of diagnosis	Age at diagnosis													Mid-year of birth cohort^‡
	20–24	25–29	30–34	35–39	40–44	45–49	50–54	55–59	60–64	65–69	70–74	75–79	80–84
													9.0	1899
												9.4	8.4	1904
											5.8	9.9	8.5	1909
										7.7	8.1	9.5	6.4	1914
									7.1	10.2	9.2	10.7	11.8	1919
								7.8	8.2	10.9	13.3	20.5	18.2	1924
							7.7	8.1	10.2	12.3	18.5	30.2		1929
						6.8	10.0	10.2	11.4	22.7	29.4			1934
					8.5	9.4	10.6	12.5	23.8	30.2				1939
				6.6	9.9	11.1	12.9	25.6	29.7					1944
			6.6	9.4	9.2	11.7	24.2	34.1						1949
		5.1	8.2	9.5	13.8	25.9	36.1							1954
1979–83	4.1	6.7	8.4	13.1	24.5	36.9								1959
1984–88	4.8	8.9	12.1	21.7	27.4									1964
1989–93	5.1	9.3	19.0	29.8										1969
1994–98	6.0	15.7	27.1											1974
1999–03	9.0	19.0												1979
2004–06	10.6													1984

^†Data are from the New Jersey State Cancer Registry, New Jersey Department of Health and Senior Services, November, 2008 analytic file. All primary invasive cases of thyroid cancer diagnosed between 1979 and 2006 are included except death certificate only and autopsy only cases. Cases  0–19 and 85 or older were excluded (𝑛=462). Rates are number of cases per 100,000 population and are not age-adjusted.
^‡Birth cohorts are nine-year overlapping groups labeled by the mid-year, for example, the 1899 birth cohort includes people born in 1895–1903.

(b) Male thyroid cancer incidence rates by birth cohort, year of diagnosis, and age, New Jersey, 1979–2006, 𝑁=3,772^†.

Year of diagnosis	Age at diagnosis													Mid-year of birth cohort^‡
	20–24	25–29	30–34	35–39	40–44	45–49	50–54	55–59	60–64	65–69	70–74	75–79	80–84
													5.4	1899
												3.9	5.4	1904
											3.3	7.7	5.0	1909
										6.2	5.5	6.0	6.5	1914
									3.4	5.2	6.9	5.6	8.9	1919
								4.0	5.7	6.9	7.2	12.8	11.3	1924
							2.8	5.4	6.1	7.5	16.0	16.7		1929
						2.8	4.4	5.8	8.5	13.0	15.4			1934
					2.9	4.7	4.5	6.5	10.0	17.1				1939
				2.5	2.9	4.0	5.9	12.1	14.0					1944
			2.2	3.5	4.5	5.9	9.1	14.5						1949
		1.2	2.0	2.3	3.5	7.1	11.3							1954
1979–83	0.9	1.8	2.1	3.3	6.4	9.4								1959
1984–88	0.9	2.1	3.3	5.3	7.9									1964
1989–93	1.0	2.0	3.3	6.8										1969
1994–98	1.9	3.4	6.1											1974
1999–03	1.8	3.1												1979
2004–06	2.6													1984

^†Data are from the New Jersey State Cancer Registry, New Jersey Department of Health and Senior Services, November 2008 analytic file. All primary invasive cases of thyroid cancer diagnosed between 1979 and 2006 are included except death certificate only and autopsy only cases. Cases  0–19 and 85 or older were excluded (𝑛=127). Rates are number of cases per 100,000 population and are not age-adjusted.
‡Birth cohorts are nine-year overlapping groups labeled by the mid-year, for example, the 1899 birth cohort includes people born in 1895–1903.