Invasive Breast Cancer
Incidence & Mortality Trends for Females
Allegan County Health Department,
Michigan Residents,1985-2021
Year of
Diagnosis
or Death		 Cases Diagnosed Deaths
Number Age-Adjusted
Rate		 Michigan
Rate		 Number Age-Adjusted
Rate		 Michigan
Rate
2021 --- ---   ---   29   37.6  ±13.6 20.2  
2020 101   129.2  ±26.0 114.9   17   *   20.3  
2019 79   112.7  ±25.8 124.5   9   *   19.9  
2018 109   156.2  ±30.1 127.9   8   *   21.7  
2017 83   110.9  ±24.0 121.2   10   *   19.2  
2016 100   134.4  ±26.6 126.0   12   *   20.5  
2015 53   80.1  ±21.9 122.7   15   *   20.3  
2014 60   90.0  ±23.0 119.3   15   *   22.2  
2013 91   133.2  ±27.4 126.9   8   *   21.1  
2012 75   109.8  ±25.2 127.2   16   *   22.1  
2011 82   121.8  ±26.2 123.9   14   *   22.5  
2010 48   74.8  ±21.4 118.1   15   *   23.7  
2009 72   114.5  ±26.6 123.0   11   *   22.7  
2008 86   138.6  ±29.2 119.2   17   *   24.2  
2007 64   101.8  ±24.5 122.8   16   *   24.0  
2006 73   119.1  ±27.2 122.3   9   *   24.9  
2005 66   111.7  ±26.7 122.9   13   *   24.0  
2004 49   85.7  ±23.6 124.6   16   *   24.5  
2003 62   108.8  ±26.4 126.4   8   *   24.9  
2002 59   106.6  ±26.3 132.5   7   *   26.8  
2001 53   98.6  ±26.4 134.8   11   *   26.3  
2000 46   86.9  ±24.4 136.1   14   *   27.1  
1999 61   118.4  ±29.1 136.0   13   *   28.1  
1998 47   92.5  ±25.2 135.5   23   44.6  ±17.2 27.2  
1997 53   106.9  ±28.0 134.8   10   *   29.0  
1996 51   105.7  ±27.7 130.2   18   *   30.4  
1995 78   161.4  ±35.0 134.6   15   *   32.9  
1994 46   96.0  ±27.0 129.3   14   *   32.7  
1993 47   99.0  ±26.8 132.4   18   *   30.5  
1992 54   122.9  ±32.4 136.8   5   *   32.0  
1991 52   119.3  ±31.9 141.5   13   *   33.8  
1990 46   104.4  ±29.8 142.5   10   *   33.9  
1989 40   98.1  ±30.2 133.9   11   *   34.8  
1988 40   94.5  ±29.2 132.3   12   *   34.4  
1987 45   110.9  ±32.4 130.4   10   *   34.5  
1986 35   89.5  ±30.0 125.6   8   *   34.6  
1985 43   106.1  ±32.2 123.0   16   *   34.1  
                 

 

Notes:

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. Underlying causes of death for 1985-1998 were classified in accordance with the Ninth Revision of the International Classification of Diseases (ICD-9). Beginning with 1999, causes of death were classified using ICD-10. Because the comparability between classifications for cancer deaths is high, the change should have little or no impact on comparisons of mortality statistics over time.

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.

* : A rate is not calculated when there are fewer than 20 events, because the width of the confidence interval would negate any usefulness for comparative purposes.

---: Not available.
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.
Source of Michigan Cases Diagnosed: 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.
Source of Michigan Death Data: 1985 - 2021 Michigan Resident Death Files, Division for Vital Records & Health Statistics, Michigan Department of Health & Human Services.
Source of National CDC Data: U.S. Cancer Statistics Working Group. United States Cancer Statistics: 1999 - 2018 Incidence and Mortality Web-based Report. Atlanta : U.S. Department of Health and Human Services, Centers for Disease Control and Prevention and National Cancer Institute; 2022. Available at: www.cdc.gov/uscs.
Last Updated: April 13, 2023