Five-year Breast Cancer Incidence by Stage at Diagnosis
Macomb County Female Residents, 1985-2020

Year of Diagnosis	Total	In Situ		Localized		Regional		Distant		Unknown
		Number	Percent	Number	Percent	Number	Percent	Number	Percent	Number	Percent
2016-2020	4,571	840	18.4	2,490	54.5	975	21.3	234	5.1	32	0.7
2015-2019	4,556	843	18.5	2,449	53.8	991	21.8	233	5.1	40	0.9
2014-2018	4,464	835	18.7	2,404	53.9	968	21.7	218	4.9	39	0.9
2013-2017	4,306	799	18.6	2,283	53.0	959	22.3	218	5.1	47	1.1
2012-2016	4,382	794	18.1	2,302	52.5	994	22.7	242	5.5	50	1.1
2011-2015	4,279	796	18.6	2,223	52.0	974	22.8	236	5.5	50	1.2
2010-2014	4,210	770	18.3	2,182	51.8	969	23.0	233	5.5	56	1.3
2009-2013	4,111	748	18.2	2,065	50.2	989	24.1	244	5.9	65	1.6
2008-2012	3,986	726	18.2	2,003	50.3	949	23.8	236	5.9	72	1.8
2007-2011	3,866	732	18.9	1,926	49.8	935	24.2	194	5.0	79	2.0
2006-2010	3,866	723	18.7	1,913	49.5	951	24.6	184	4.8	95	2.5
2005-2009	3,792	707	18.6	1,892	49.9	930	24.5	160	4.2	103	2.7
2004-2008	3,790	666	17.6	1,898	50.1	932	24.6	159	4.2	135	3.6
2003-2007	3,844	689	17.9	1,899	49.4	967	25.2	149	3.9	140	3.6
2002-2006	3,860	723	18.7	1,882	48.8	943	24.4	151	3.9	161	4.2
2001-2005	3,889	754	19.4	1,883	48.4	947	24.4	151	3.9	154	4.0
2000-2004	3,956	783	19.8	1,881	47.5	958	24.2	159	4.0	175	4.4
1999-2003	3,924	820	20.9	1,897	48.3	913	23.3	135	3.4	159	4.1
1998-2002	3,970	832	21.0	1,941	48.9	901	22.7	132	3.3	164	4.1
1997-2001	3,916	803	20.5	1,923	49.1	898	22.9	134	3.4	158	4.0
1996-2000	3,812	757	19.9	1,905	50.0	862	22.6	128	3.4	160	4.2
1995-1999	3,767	719	19.1	1,890	50.2	868	23.0	141	3.7	149	4.0
1994-1998	3,661	659	18.0	1,821	49.7	896	24.5	144	3.9	141	3.9
1993-1997	3,472	591	17.0	1,751	50.4	850	24.5	135	3.9	145	4.2
1992-1996	3,366	522	15.5	1,743	51.8	831	24.7	129	3.8	141	4.2
1991-1995	3,335	480	14.4	1,696	50.9	855	25.6	143	4.3	161	4.8
1990-1994	3,191	416	13.0	1,654	51.8	820	25.7	130	4.1	171	5.4
1989-1993	3,126	360	11.5	1,605	51.3	828	26.5	131	4.2	202	6.5
1988-1992	3,062	327	10.7	1,548	50.6	857	28.0	152	5.0	178	5.8
1987-1991	2,985	293	9.8	1,474	49.4	887	29.7	157	5.3	174	5.8
1986-1990	2,799	257	9.2	1,359	48.6	885	31.6	145	5.2	153	5.5
1985-1989	2,678	227	8.5	1,261	47.1	896	33.5	150	5.6	144	5.4

Notes:
In Situ Stage represents the presence of malignant cells within the cell group from which they arose, with no penetration of basement membrane of the tissue and no stromal invasion.
Localized Stage represents invasive cancer confined to the organ of origin or intralumenal extension where specified as an intralumenal extension to immediately contiguous segments of the large bowel.
Regional Stage represents direct extension to adjacent organs or tissues or involvement of the regional lymph nodes.
Distant Stage represents direct continuity to non-adjacent organs, discontinuous metastasis or involvement of the distant lymph nodes.
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