Table 17-A
Invasive Colorectal Cancer Incidence by Age at Diagnosis
Michigan Residents, 1985 - 2020
Year of
Diagnosis
Less than 50 50 - 74 75 and Older
Average
Number
Age-specific
Rate
Average
Number
Age-specific
Rate
Average
Number
Age-specific
Rate
2018-2020 537   8.7 ±0.4 2,605   84.1 ±1.8 1,381   193.8 ±5.8
2017-2019 559   9.0 ±0.4 2,775   90.4 ±1.9 1,479   208.9 ±6.0
2016-2018 554   8.9 ±0.4 2,786   91.2 ±1.9 1,502   217.8 ±6.2
2015-2017 552   8.8 ±0.4 2,776   91.4 ±1.9 1,523   226.0 ±6.4
2014-2016 550   8.8 ±0.4 2,715   90.2 ±1.9 1,527   229.9 ±6.5
2013-2015 518   8.2 ±0.4 2,637   88.7 ±1.9 1,544   235.0 ±6.6
2012-2014 507   8.0 ±0.4 2,583   88.3 ±1.9 1,601   245.8 ±6.7
2011-2013 477   7.5 ±0.4 2,551   88.8 ±2.0 1,653   255.7 ±6.9
2010-2012 482   7.5 ±0.4 2,568   91.2 ±2.0 1,701   264.9 ±7.0
2009-2011 493   7.6 ±0.4 2,618   95.0 ±2.1 1,733   271.9 ±7.1
2008-2010 492   7.5 ±0.4 2,620   97.5 ±2.1 1,836   289.3 ±7.4
2007-2009 493   7.4 ±0.4 2,661   101.6 ±2.2 1,951   308.7 ±7.6
2006-2008 490   7.2 ±0.4 2,693   105.6 ±2.3 2,056   326.3 ±7.8
2005-2007 504   7.3 ±0.4 2,763   111.3 ±2.4 2,101   335.8 ±8.0
2004-2006 508   7.2 ±0.4 2,741   113.3 ±2.4 2,120   342.1 ±8.1
2003-2005 505   7.1 ±0.4 2,767   117.4 ±2.5 2,175   354.7 ±8.2
2002-2004 513   7.2 ±0.4 2,783   121.0 ±2.6 2,232   368.3 ±8.4
2001-2003 497   6.9 ±0.4 2,816   125.4 ±2.6 2,296   384.0 ±8.6
2000-2002 477   6.6 ±0.3 2,786   126.8 ±2.7 2,285   388.3 ±8.8
1999-2001 443   6.1 ±0.3 2,789   129.7 ±2.7 2,261   390.5 ±8.9
1998-2000 429   5.9 ±0.3 2,862   135.9 ±2.8 2,280   400.6 ±9.0
1997-1999 410   5.7 ±0.3 2,875   139.2 ±2.9 2,293   410.5 ±9.2
1996-1998 400   5.5 ±0.3 2,868   141.7 ±2.9 2,281   417.0 ±9.4
1995-1997 387   5.4 ±0.3 2,772   139.1 ±2.9 2,182   409.0 ±9.4
1994-1996 379   5.3 ±0.3 2,761   140.4 ±3.0 2,126   409.0 ±9.5
1993-1995 370   5.2 ±0.3 2,772   142.1 ±3.0 2,083   410.9 ±9.7
1992-1994 368   5.2 ±0.3 2,872   148.8 ±3.1 2,110   426.7 ±10.0
1991-1993 366   5.2 ±0.3 2,943   154.2 ±3.2 2,169   450.1 ±10.3
1990-1992 357   5.1 ±0.3 3,004   158.9 ±3.2 2,183   466.5 ±10.7
1989-1991 348   5.0 ±0.3 3,041   161.8 ±3.3 2,165   476.0 ±10.9
1988-1990 325   4.7 ±0.3 3,001   160.0 ±3.2 2,064   466.6 ±11.0
1987-1989 320   4.6 ±0.3 3,002   160.1 ±3.2 1,993   462.2 ±11.1
1986-1988 305   4.4 ±0.3 2,967   158.2 ±3.2 1,897   451.1 ±11.1
1985-1987 305   4.5 ±0.3 3,063   163.3 ±3.3 1,844   448.7 ±11.2

 

Notes: Age-specific Rate is per 100,000 population in a specific age group.  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.

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.

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.
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
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