Invasive Colorectal Cancer Incidence by Age at Diagnosis
City Of Detroit Health Department,
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 38   8.8 ±1.6 191   108.8 ±8.8 70   186.1 ±24.6
2017-2019 43   9.7 ±1.7 209   119.0 ±9.2 79   209.1 ±25.9
2016-2018 41   9.2 ±1.6 222   126.1 ±9.4 82   221.0 ±27.0
2015-2017 42   9.5 ±1.7 228   129.7 ±9.6 85   235.3 ±28.0
2014-2016 44   9.6 ±1.6 231   130.2 ±9.6 85   235.3 ±28.1
2013-2015 44   9.5 ±1.6 230   128.9 ±9.5 96   261.7 ±29.3
2012-2014 43   9.2 ±1.6 222   123.8 ±9.3 102   273.4 ±29.7
2011-2013 40   8.4 ±1.5 225   125.9 ±9.4 114   301.0 ±30.8
2010-2012 37   7.5 ±1.4 229   128.6 ±9.5 118   309.5 ±31.0
2009-2011 38   7.5 ±1.4 232   130.8 ±9.6 127   326.7 ±31.6
2008-2010 35   6.7 ±1.3 224   126.8 ±9.4 135   342.1 ±32.0
2007-2009 40   7.4 ±1.3 235   133.3 ±9.7 143   354.4 ±32.2
2006-2008 39   6.9 ±1.2 250   142.1 ±10.0 155   378.0 ±32.8
2005-2007 46   7.7 ±1.3 265   151.1 ±10.3 158   377.8 ±32.4
2004-2006 48   7.7 ±1.3 266   152.0 ±10.4 173   403.9 ±33.1
2003-2005 50   7.8 ±1.2 273   157.0 ±10.5 182   417.8 ±33.3
2002-2004 54   8.0 ±1.2 286   164.7 ±10.8 199   450.1 ±34.1
2001-2003 52   7.6 ±1.2 285   164.2 ±10.8 211   469.7 ±34.5
2000-2002 54   7.6 ±1.2 287   165.9 ±10.9 204   448.8 ±33.6
1999-2001 50   6.8 ±1.1 287   162.4 ±10.6 195   395.3 ±30.5
1998-2000 52   7.0 ±1.1 299   166.4 ±10.7 195   371.8 ±28.8
1997-1999 50   6.8 ±1.1 300   164.8 ±10.5 206   373.9 ±28.2
1996-1998 49   6.5 ±1.1 290   159.1 ±10.4 221   406.6 ±29.4
1995-1997 47   6.2 ±1.0 285   155.4 ±10.2 221   411.1 ±29.7
1994-1996 48   6.3 ±1.0 289   155.5 ±10.2 223   417.9 ±30.1
1993-1995 54   7.0 ±1.1 302   161.5 ±10.3 217   412.9 ±30.1
1992-1994 55   7.1 ±1.1 310   164.8 ±10.4 219   422.6 ±30.6
1991-1993 52   6.6 ±1.0 334   176.2 ±10.7 222   433.7 ±31.2
1990-1992 48   6.1 ±1.0 363   189.5 ±11.0 241   473.9 ±32.6
1989-1991 46   5.8 ±1.0 391   200.8 ±11.2 241   476.1 ±32.7
1988-1990 45   5.7 ±1.0 387   194.8 ±10.9 243   480.1 ±32.8
1987-1989 45   5.6 ±1.0 392   191.5 ±10.7 239   469.1 ±32.4
1986-1988 43   5.4 ±0.9 391   185.7 ±10.4 237   462.7 ±32.1
1985-1987 41   5.1 ±0.9 401   185.1 ±10.2 242   468.5 ±32.2

 

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