Five-year Breast Cancer Incidence by Stage at Diagnosis
St. Joseph 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	289	40	13.8	160	55.4	67	23.2	17	5.9	5	1.7
2015-2019	276	39	14.1	144	52.2	66	23.9	20	7.2	7	2.5
2014-2018	265	39	14.7	134	50.6	64	24.2	19	7.2	9	3.4
2013-2017	260	43	16.5	126	48.5	62	23.8	19	7.3	10	3.8
2012-2016	264	48	18.2	124	47.0	65	24.6	17	6.4	10	3.8
2011-2015	236	43	18.2	114	48.3	56	23.7	14	5.9	9	3.8
2010-2014	231	46	19.9	108	46.8	55	23.8	15	6.5	7	3.0
2009-2013	239	50	20.9	117	49.0	52	21.8	14	5.9	6	2.5
2008-2012	237	47	19.8	117	49.4	53	22.4	15	6.3	5	2.1
2007-2011	233	46	19.7	116	49.8	49	21.0	16	6.9	6	2.6
2006-2010	234	43	18.4	118	50.4	53	22.6	15	6.4	5	2.1
2005-2009	235	39	16.6	127	54.0	50	21.3	13	5.5	6	2.6
2004-2008	224	27	12.1	124	55.4	50	22.3	13	5.8	10	4.5
2003-2007	223	30	13.5	122	54.7	51	22.9	8	3.6	12	5.4
2002-2006	242	33	13.6	126	52.1	63	26.0	7	2.9	13	5.4
2001-2005	241	33	13.7	127	52.7	61	25.3	5	2.1	15	6.2
2000-2004	253	37	14.6	126	49.8	68	26.9	6	2.4	16	6.3
1999-2003	261	44	16.9	131	50.2	67	25.7	9	3.4	10	3.8
1998-2002	257	39	15.2	125	48.6	66	25.7	13	5.1	14	5.4
1997-2001	240	31	12.9	121	50.4	60	25.0	13	5.4	15	6.3
1996-2000	241	34	14.1	121	50.2	56	23.2	13	5.4	17	7.1
1995-1999	217	28	12.9	109	50.2	49	22.6	12	5.5	19	8.8
1994-1998	218	27	12.4	101	46.3	56	25.7	9	4.1	25	11.5
1993-1997	220	29	13.2	112	50.9	50	22.7	7	3.2	22	10.0
1992-1996	217	28	12.9	116	53.5	44	20.3	7	3.2	22	10.1
1991-1995	203	21	10.3	106	52.2	45	22.2	11	5.4	20	9.9
1990-1994	223	21	9.4	108	48.4	54	24.2	13	5.8	27	12.1
1989-1993	216	17	7.9	103	47.7	44	20.4	17	7.9	35	16.2
1988-1992	216	13	6.0	90	41.7	41	19.0	17	7.9	55	25.5
1987-1991	210	11	5.2	75	35.7	40	19.0	16	7.6	68	32.4
1986-1990	213	12	5.6	68	31.9	46	21.6	14	6.6	73	34.3
1985-1989	194	11	5.7	67	34.5	38	19.6	14	7.2	64	33.0

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