Invasive Cancer Incidence by Age at Diagnosis

Invasive Breast Cancer Incidence by Age at Diagnosis
Female Allegan County Health Department District 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	18	48.1 ±12.9	61	320.7 ±44.9	19	425.9 ±105.8	97	132.3 ±15.7
2017-2019	15	40.0 ±11.8	56	300.5 ±43.9	21	471.6 ±111.6	91	126.1 ±15.4
2016-2018	13	36.3 ±11.3	64	350.3 ±47.4	21	489.1 ±115.5	98	134.2 ±15.7
2015-2017	10	28.1 ±10.0	53	293.5 ±44.0	16	389.9 ±106.2	79	108.9 ±14.1
2014-2016	13	35.7 ±11.2	48	265.7 ±42.3	11	279.4 ±92.0	71	101.6 ±13.8
2013-2015	14	39.6 ±11.9	41	234.0 ±40.2	13	335.6 ±101.0	68	100.6 ±13.9
2012-2014	15	41.5 ±12.1	49	281.7 ±44.3	13	323.0 ±100.0	76	110.7 ±14.6
2011-2013	15	41.4 ±12.1	55	324.5 ±47.8	14	362.5 ±106.1	83	121.5 ±15.2
2010-2012	14	38.1 ±11.6	44	269.5 ±44.4	11	284.6 ±95.2	69	102.5 ±14.1
2009-2011	15	40.4 ±11.8	41	254.4 ±43.9	13	329.2 ±101.8	68	104.0 ±14.4
2008-2010	17	44.3 ±12.3	41	266.7 ±45.6	12	304.7 ±98.6	69	108.9 ±15.0
2007-2009	17	44.5 ±12.2	46	305.4 ±49.4	12	325.4 ±102.0	74	118.1 ±15.5
2006-2008	19	49.1 ±12.7	46	319.5 ±51.4	10	273.8 ±94.7	75	119.9 ±15.6
2005-2007	19	48.6 ±12.6	39	284.2 ±49.7	10	276.0 ±95.4	68	110.8 ±15.1
2004-2006	18	46.4 ±12.2	37	275.5 ±50.0	9	231.4 ±88.1	63	105.7 ±15.0
2003-2005	14	35.1 ±10.7	36	277.7 ±51.1	10	279.3 ±96.5	59	102.0 ±14.8
2002-2004	12	30.8 ±10.0	34	277.2 ±52.0	11	299.6 ±100.0	57	100.2 ±14.7
2001-2003	12	30.8 ±10.0	35	292.9 ±54.3	12	319.6 ±103.2	58	104.9 ±15.3
2000-2002	12	30.9 ±10.0	30	259.7 ±52.2	11	313.4 ±102.8	53	97.5 ±14.9
1999-2001	12	30.3 ±9.9	30	271.1 ±54.1	12	336.9 ±107.0	54	100.9 ±15.4
1998-2000	11	28.8 ±9.8	28	258.0 ±53.7	13	373.3 ±113.3	52	99.3 ±15.2
1997-1999	11	28.2 ±9.7	30	287.9 ±57.4	13	390.5 ±116.7	54	106.2 ±15.9
1996-1998	13	33.0 ±10.5	26	257.1 ±55.3	12	367.6 ±114.7	51	101.5 ±15.6
1995-1997	15	39.6 ±11.6	32	317.2 ±61.6	15	458.5 ±127.9	61	124.4 ±17.5
1994-1996	16	43.8 ±12.3	30	306.3 ±61.2	13	404.4 ±122.2	59	121.4 ±17.5
1993-1995	15	39.8 ±11.8	30	310.7 ±62.1	13	423.3 ±126.0	57	119.3 ±17.3
1992-1994	16	45.1 ±12.6	23	241.5 ±55.7	11	343.0 ±115.7	49	105.3 ±16.5
1991-1993	16	45.6 ±12.8	26	274.6 ±59.7	10	327.6 ±114.5	51	113.5 ±17.5
1990-1992	16	46.2 ±12.9	27	297.3 ±62.4	8	266.4 ±105.3	51	116.0 ±18.2
1989-1991	14	39.1 ±12.0	27	297.4 ±62.8	6	214.5 ±96.5	46	107.3 ±17.7
1988-1990	13	38.7 ±12.0	23	251.2 ±58.3	7	245.6 ±104.4	42	99.0 ±17.2
1987-1989	13	38.3 ±12.1	22	245.4 ±57.8	8	278.9 ±112.6	42	101.3 ±17.7
1986-1988	12	34.8 ±11.6	21	231.5 ±56.4	9	327.2 ±123.1	40	98.1 ±17.6
1985-1987	10	31.2 ±11.1	23	255.7 ±59.3	9	350.5 ±128.9	41	102.2 ±18.2

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