Invasive Colorectal Cancer Incidence by Age at Diagnosis
St. Clair County, Michigan Residents, 1985 - 2013
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
2011-2013 1   2   11.5 ±9.2 6   25.1 ±11.6 9   8.4 ±3.3
2010-2012 -    -     2   9   33.8 ±13.2 10   9.6 ±3.5
2009-2011 -    -     2   9   35.5 ±13.4 11   10.0 ±3.5
2008-2010 -    -     2   9   33.3 ±12.8 10   9.4 ±3.4
2007-2009 -    -     3   13.4 ±9.2 8   28.7 ±11.7 11   9.5 ±3.3
2006-2008 -    -     4   17.6 ±10.4 7   23.1 ±10.4 10   8.9 ±3.2
2005-2007 1   4   15.4 ±9.5 5   18.0 ±9.1 9   7.6 ±2.9
2004-2006 1   3   13.3 ±8.7 5   17.9 ±9.0 9   7.2 ±2.8
2003-2005 1   2   8.6 ±6.8 5   17.9 ±9.1 8   6.3 ±2.6
2002-2004 -    -     3   11.1 ±7.7 6   21.6 ±10.0 9   7.4 ±2.8
2001-2003 -    -     2   6   19.5 ±9.5 7   5.9 ±2.5
2000-2002 1   2   7.9 ±6.3 7   23.5 ±10.6 9   7.3 ±2.8
1999-2001 1   2   7.8 ±6.3 8   29.0 ±11.8 11   8.7 ±3.1
1998-2000 1   3   9.1 ±6.7 9   33.5 ±12.9 12   9.9 ±3.3
1997-1999 1   2   8   29.1 ±12.1 9   7.7 ±2.9
1996-1998 1   1   7   27.1 ±11.9 8   6.9 ±2.7
1995-1997 1   -    -     5   20.9 ±10.6 6   4.9 ±2.3
1994-1996 1   -    -     6   23.1 ±11.3 6   5.2 ±2.4
1993-1995 -    -     -    -     4   18.0 ±10.2 4   3.5 ±2.0
1992-1994 -    -     -    -     4   18.7 ±10.6 4   3.6 ±2.0
1991-1993 -    -     1   3   14.5 ±9.5 4   3.3 ±1.9
1990-1992 -    -     1   4   16.7 ±10.3 5   3.9 ±2.1
1989-1991 -    -     2   3   15.7 ±10.3 5   4.0 ±2.2
1988-1990 -    -     2   4   22.0 ±12.4 6   5.0 ±2.4
1987-1989 -    -     2   4   19.2 ±11.9 5   4.4 ±2.3
1986-1988 -    -     2   4   22.3 ±13.2 5   4.8 ±2.4
1985-1987 1   1   4   23.5 ±13.9 5   4.5 ±2.3

 

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.

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.

* : A rate is not calculated when there are fewer than 6 events, because the width of the confidence interval would negate any usefulness for comparative purposes.
Source: Michigan Resident Cancer Incidence File. Updated with cases processed through November 30, 2015. Division for Vital Records & Health Statistics, Michigan Department of Health & Human Services.
Last Updated: November 1, 2016