Five-year Colorectal Cancer Incidence by Stage at Diagnosis
Allegan County Health Department District 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	242	11	4.5	81	33.5	81	33.5	48	19.8	21	8.7
2015-2019	244	14	5.7	85	34.8	83	34.0	41	16.8	21	8.6
2014-2018	243	16	6.6	79	32.5	75	30.9	49	20.2	24	9.9
2013-2017	249	18	7.2	87	34.9	78	31.3	41	16.5	25	10.0
2012-2016	268	21	7.8	96	35.8	86	32.1	46	17.2	19	7.1
2011-2015	247	19	7.7	94	38.1	78	31.6	38	15.4	18	7.3
2010-2014	237	15	6.3	85	35.9	79	33.3	38	16.0	20	8.4
2009-2013	236	12	5.1	90	38.1	78	33.1	36	15.3	20	8.5
2008-2012	228	9	3.9	82	36.0	71	31.1	41	18.0	25	11.0
2007-2011	212	5	2.4	73	34.4	68	32.1	37	17.5	29	13.7
2006-2010	224	4	1.8	85	37.9	66	29.5	38	17.0	31	13.8
2005-2009	229	4	1.7	87	38.0	66	28.8	38	16.6	34	14.8
2004-2008	224	5	2.2	85	37.9	67	29.9	34	15.2	33	14.7
2003-2007	227	6	2.6	89	39.2	69	30.4	32	14.1	31	13.7
2002-2006	241	4	1.7	94	39.0	80	33.2	33	13.7	30	12.4
2001-2005	234	7	3.0	81	34.6	84	35.9	29	12.4	33	14.1
2000-2004	239	7	2.9	84	35.1	93	38.9	27	11.3	28	11.7
1999-2003	259	10	3.9	87	33.6	96	37.1	35	13.5	31	12.0
1998-2002	267	10	3.7	81	30.3	114	42.7	33	12.4	29	10.9
1997-2001	259	12	4.6	73	28.2	110	42.5	34	13.1	30	11.6
1996-2000	256	11	4.3	67	26.2	103	40.2	38	14.8	37	14.5
1995-1999	269	11	4.1	66	24.5	102	37.9	44	16.4	46	17.1
1994-1998	246	8	3.3	67	27.2	89	36.2	36	14.6	46	18.7
1993-1997	227	9	4.0	65	28.6	68	30.0	34	15.0	51	22.5
1992-1996	228	10	4.4	65	28.5	64	28.1	31	13.6	58	25.4
1991-1995	227	8	3.5	69	30.4	64	28.2	26	11.5	60	26.4
1990-1994	204	9	4.4	56	27.5	59	28.9	18	8.8	62	30.4
1989-1993	203	9	4.4	42	20.7	64	31.5	22	10.8	66	32.5
1988-1992	209	7	3.3	49	23.4	61	29.2	23	11.0	69	33.0
1987-1991	203	5	2.5	55	27.1	55	27.1	21	10.3	67	33.0
1986-1990	196	6	3.1	56	28.6	50	25.5	19	9.7	65	33.2
1985-1989	202	6	3.0	64	31.7	55	27.2	18	8.9	59	29.2

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