Invasive Cancer Incidence by Age at Diagnosis

Invasive Breast Cancer Incidence by Age at Diagnosis
Female Michigan Residents, 1985-2020
Year of Diagnosis	< 50 Years		50 - 74 Years		75 Years and Over		Total
Year of Diagnosis	Average Number	Age- Specific Rate	Average Number	Age- Specific Rate	Average Number	Age- Specific Rate	Average Number	Age- Adjusted Rate
2018-2020	1,303	42.6 ±1.3	5,002	313.5 ±4.8	1,648	395.6 ±10.5	7,952	122.4 ±1.6
2017-2019	1,314	42.9 ±1.3	5,051	318.4 ±4.9	1,682	403.9 ±10.6	8,046	124.5 ±1.6
2016-2018	1,316	42.8 ±1.3	5,021	317.9 ±4.9	1,672	410.3 ±10.8	8,009	125.1 ±1.6
2015-2017	1,300	42.1 ±1.3	4,895	311.8 ±4.9	1,620	404.8 ±10.8	7,814	123.3 ±1.6
2014-2016	1,287	41.5 ±1.3	4,888	314.2 ±4.9	1,562	394.0 ±10.7	7,736	122.7 ±1.6
2013-2015	1,305	41.9 ±1.3	4,819	313.7 ±4.9	1,556	394.8 ±10.8	7,680	122.9 ±1.6
2012-2014	1,358	43.3 ±1.3	4,778	315.9 ±5.0	1,551	394.9 ±10.8	7,686	124.4 ±1.6
2011-2013	1,405	44.4 ±1.3	4,678	315.0 ±5.0	1,596	407.7 ±11.0	7,679	126.0 ±1.6
2010-2012	1,392	43.6 ±1.3	4,487	308.2 ±5.0	1,548	396.3 ±10.8	7,426	123.1 ±1.6
2009-2011	1,390	43.1 ±1.3	4,339	304.7 ±5.0	1,548	397.4 ±10.9	7,276	121.7 ±1.6
2008-2010	1,424	43.6 ±1.3	4,142	297.9 ±5.0	1,545	397.0 ±10.9	7,111	120.1 ±1.6
2007-2009	1,474	44.4 ±1.3	4,075	300.5 ±5.1	1,586	407.7 ±11.0	7,135	121.7 ±1.6
2006-2008	1,525	45.1 ±1.3	3,937	298.1 ±5.2	1,573	404.6 ±11.0	7,034	121.4 ±1.6
2005-2007	1,567	45.7 ±1.3	3,898	303.0 ±5.3	1,573	406.3 ±11.0	7,037	122.6 ±1.6
2004-2006	1,608	46.3 ±1.3	3,824	304.8 ±5.4	1,562	406.0 ±11.1	6,993	123.2 ±1.6
2003-2005	1,619	46.1 ±1.3	3,784	309.0 ±5.5	1,593	416.8 ±11.2	6,995	124.6 ±1.7
2002-2004	1,587	44.9 ±1.3	3,883	324.6 ±5.7	1,626	428.5 ±11.4	7,096	127.8 ±1.7
2001-2003	1,570	44.1 ±1.2	3,964	338.9 ±5.8	1,663	442.3 ±11.6	7,195	131.2 ±1.7
2000-2002	1,551	43.4 ±1.2	4,044	353.0 ±6.0	1,692	455.2 ±11.8	7,286	134.4 ±1.7
1999-2001	1,563	43.7 ±1.2	3,993	355.6 ±6.1	1,703	463.7 ±12.0	7,259	135.6 ±1.8
1998-2000	1,554	43.3 ±1.2	3,937	357.1 ±6.2	1,697	468.2 ±12.1	7,187	135.9 ±1.8
1997-1999	1,558	43.4 ±1.2	3,863	356.5 ±6.2	1,660	465.0 ±12.2	7,079	135.4 ±1.8
1996-1998	1,542	42.9 ±1.2	3,756	352.8 ±6.2	1,597	455.6 ±12.2	6,895	133.5 ±1.8
1995-1997	1,511	42.1 ±1.2	3,707	352.9 ±6.3	1,575	459.2 ±12.4	6,792	133.2 ±1.8
1994-1996	1,468	41.0 ±1.2	3,616	348.0 ±6.3	1,527	455.6 ±12.5	6,611	131.4 ±1.8
1993-1995	1,431	40.2 ±1.2	3,596	348.4 ±6.3	1,541	470.5 ±12.8	6,568	132.1 ±1.8
1992-1994	1,423	40.1 ±1.2	3,576	349.3 ±6.3	1,525	476.7 ±13.0	6,524	132.8 ±1.8
1991-1993	1,421	40.2 ±1.2	3,634	358.0 ±6.4	1,582	507.2 ±13.5	6,637	136.9 ±1.9
1990-1992	1,408	40.0 ±1.2	3,698	366.9 ±6.5	1,597	526.7 ±14.0	6,703	140.2 ±1.9
1989-1991	1,374	39.3 ±1.2	3,643	362.9 ±6.5	1,538	521.8 ±14.1	6,555	139.3 ±1.9
1988-1990	1,306	37.6 ±1.2	3,591	358.1 ±6.5	1,429	498.3 ±14.0	6,327	136.3 ±1.9
1987-1989	1,254	36.2 ±1.1	3,498	348.7 ±6.4	1,310	468.4 ±13.8	6,063	132.3 ±1.9
1986-1988	1,214	35.2 ±1.1	3,420	340.6 ±6.3	1,222	448.0 ±13.7	5,857	129.5 ±1.9
1985-1987	1,188	34.7 ±1.1	3,292	328.0 ±6.2	1,147	430.4 ±13.6	5,628	126.4 ±1.9

Notes:
Age-Specific Rates are per 100,000 population in a specific sex and age group. Age-Adjusted Rates are per 100,000 female population. Age-adjusted rates are computed by the direct method, using as the standard population the age distribution of the total population of the United States for the year 2000. Adding and subtracting the number shown after the ± symbol from the rate creates a confidence interval indicating that the true rate lies between the lower and upper bounds of this interval with 95 % statistical confidence. Average Number is the number of new invasive cancer cases diagnosed in the period, divided by the number of years in the period. Case: A case is defined as a person with any newly diagnosed cancer with a behavior code of 3 (malignant primary site). Both in-situ and invasive urinary bladder cancer cases are included, in order to be consistent with national tabulations from the National Cancer Institute. COVID-19 Pandemic: In 2020, the highly publicized impact of the COVID-19 pandemic on health services and the consequential delays and reductions in cancer screening and diagnosis led to a decline in the 2020 incidence rates for most cancer sites. Because 2020 was a temporary, anomalous year, it can bias estimates such as cancer incidence trends. Source : Michigan Resident Cancer Incidence File. Updated with cases processed through November 30, 2022. Division for Vital Records & Health Statistics, Michigan Department of Health & Human Services. Last Updated : April 13, 2023

Notes:

Age-Specific Rates are per 100,000 population in a specific sex and age group. Age-Adjusted Rates are per 100,000 female population. Age-adjusted rates are computed by the direct method, using as the standard population the age distribution of the total population of the United States for the year 2000. Adding and subtracting the number shown after the ± symbol from the rate creates a confidence interval indicating that the true rate lies between the lower and upper bounds of this interval with 95 % statistical confidence.

Average Number is the number of new invasive cancer cases diagnosed in the period, divided by the number of years in the period.

Case: A case is defined as a person with any newly diagnosed cancer with a behavior code of 3 (malignant primary site). Both in-situ and invasive urinary bladder cancer cases are included, in order to be consistent with national tabulations from the National Cancer Institute.

COVID-19 Pandemic: In 2020, the highly publicized impact of the COVID-19 pandemic on health services and the consequential delays and reductions in cancer screening and diagnosis led to a decline in the 2020 incidence rates for most cancer sites. Because 2020 was a temporary, anomalous year, it can bias estimates such as cancer incidence trends.

Source : Michigan Resident Cancer Incidence File. Updated with cases processed through November 30, 2022. Division for Vital Records & Health Statistics, Michigan Department of Health & Human Services.

Last Updated : April 13, 2023