Table 17-B
Invasive Colorectal Cancer Incidence by Age at Diagnosis
Michigan Residents, 1985 - 2020
Year of
Diagnosis
Less than 30 30 - 39 40 - 49 Less than 50
Average
Number
Age-specific
Rate
Average
Number
Age-specific
Rate
Average
Number
Age-specific
Rate
Average
Number
Age-specific
Rate
2018-2020 53   1.4 ±0.2 120   9.8 ±1.0 364   30.7 ±1.8 537   8.7 ±0.4
2017-2019 56   1.5 ±0.2 115   9.5 ±1.0 389   32.6 ±1.9 559   9.0 ±0.4
2016-2018 58   1.5 ±0.2 112   9.4 ±1.0 385   31.8 ±1.8 554   8.9 ±0.4
2015-2017 53   1.4 ±0.2 111   9.4 ±1.0 389   31.7 ±1.8 552   8.8 ±0.4
2014-2016 53   1.4 ±0.2 105   8.9 ±1.0 392   31.3 ±1.8 550   8.8 ±0.4
2013-2015 41   1.0 ±0.2 99   8.5 ±1.0 379   29.6 ±1.7 518   8.2 ±0.4
2012-2014 39   1.0 ±0.2 95   8.2 ±1.0 374   28.4 ±1.7 507   8.0 ±0.4
2011-2013 29   0.7 ±0.2 89   7.7 ±0.9 360   26.7 ±1.6 477   7.5 ±0.4
2010-2012 29   0.7 ±0.2 89   7.6 ±0.9 365   26.4 ±1.6 482   7.5 ±0.4
2009-2011 28   0.7 ±0.2 86   7.2 ±0.9 381   27.1 ±1.6 493   7.6 ±0.4
2008-2010 22   0.5 ±0.1 89   7.3 ±0.9 382   26.6 ±1.5 492   7.5 ±0.4
2007-2009 22   0.5 ±0.1 84   6.7 ±0.8 389   26.5 ±1.5 493   7.4 ±0.4
2006-2008 24   0.6 ±0.1 88   6.9 ±0.8 379   25.2 ±1.5 490   7.2 ±0.4
2005-2007 27   0.7 ±0.1 91   7.0 ±0.8 386   25.1 ±1.4 504   7.3 ±0.4
2004-2006 29   0.7 ±0.1 104   7.7 ±0.9 376   24.1 ±1.4 508   7.2 ±0.4
2003-2005 24   0.6 ±0.1 106   7.7 ±0.8 376   23.9 ±1.4 505   7.1 ±0.4
2002-2004 29   0.7 ±0.1 113   8.0 ±0.8 372   23.6 ±1.4 513   7.2 ±0.4
2001-2003 29   0.7 ±0.1 102   7.1 ±0.8 366   23.3 ±1.4 497   6.9 ±0.4
2000-2002 27   0.6 ±0.1 102   6.9 ±0.8 349   22.3 ±1.4 477   6.6 ±0.3
1999-2001 20   0.5 ±0.1 97   6.5 ±0.7 326   21.0 ±1.3 443   6.1 ±0.3
1998-2000 19   0.4 ±0.1 99   6.5 ±0.7 312   20.4 ±1.3 429   5.9 ±0.3
1997-1999 21   0.5 ±0.1 87   5.7 ±0.7 303   20.1 ±1.3 410   5.7 ±0.3
1996-1998 24   0.6 ±0.1 81   5.2 ±0.7 295   19.9 ±1.3 400   5.5 ±0.3
1995-1997 23   0.5 ±0.1 78   4.9 ±0.6 287   19.7 ±1.3 387   5.4 ±0.3
1994-1996 23   0.5 ±0.1 83   5.2 ±0.6 274   19.4 ±1.3 379   5.3 ±0.3
1993-1995 21   0.5 ±0.1 84   5.2 ±0.6 266   19.6 ±1.4 370   5.2 ±0.3
1992-1994 21   0.5 ±0.1 86   5.4 ±0.7 261   19.8 ±1.4 368   5.2 ±0.3
1991-1993 20   0.5 ±0.1 87   5.4 ±0.7 259   20.2 ±1.4 366   5.2 ±0.3
1990-1992 21   0.5 ±0.1 84   5.3 ±0.7 253   20.4 ±1.5 357   5.1 ±0.3
1989-1991 19   0.4 ±0.1 80   5.1 ±0.6 249   20.9 ±1.5 348   5.0 ±0.3
1988-1990 20   0.5 ±0.1 72   4.7 ±0.6 234   20.4 ±1.5 325   4.7 ±0.3
1987-1989 20   0.5 ±0.1 70   4.6 ±0.6 231   21.0 ±1.6 320   4.6 ±0.3
1986-1988 21   0.5 ±0.1 70   4.7 ±0.6 214   20.4 ±1.6 305   4.4 ±0.3
1985-1987 22   0.5 ±0.1 71   4.9 ±0.7 213   21.1 ±1.6 305   4.5 ±0.3

 

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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