Invasive Breast Cancer Incidence by Age at Diagnosis for Females,
St. Clair County, Michigan Residents, 1985 - 2013
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
2011-2013 24   48.4 ±11.1 72   278.7 ±36.0 30   458.3 ±89.9
2010-2012 24   46.8 ±10.8 72   283.6 ±36.7 28   431.6 ±87.5
2009-2011 23   45.0 ±10.5 70   282.3 ±37.0 23   349.7 ±79.6
2008-2010 23   42.5 ±10.1 73   302.3 ±38.7 25   375.5 ±82.2
2007-2009 28   51.9 ±11.0 75   321.6 ±40.4 23   344.7 ±79.0
2006-2008 31   56.1 ±11.2 80   352.6 ±42.7 25   379.4 ±82.4
2005-2007 27   48.0 ±10.3 72   325.0 ±41.7 25   380.2 ±82.6
2004-2006 24   42.0 ±9.6 68   315.0 ±41.8 27   419.9 ±86.8
2003-2005 27   45.6 ±9.9 59   282.8 ±40.3 28   429.6 ±88.1
2002-2004 27   46.4 ±10.0 70   344.7 ±44.9 27   429.0 ±88.5
2001-2003 28   46.8 ±10.0 74   377.2 ±47.4 25   399.9 ±86.1
2000-2002 27   45.5 ±9.9 81   422.8 ±50.6 30   483.3 ±94.0
1999-2001 31   52.8 ±10.6 81   435.0 ±51.9 34   553.5 ±100.2
1998-2000 31   52.4 ±10.6 79   436.2 ±52.6 37   600.7 ±104.6
1997-1999 27   45.9 ±9.9 68   381.2 ±50.1 32   540.1 ±101.0
1996-1998 23   39.9 ±9.3 61   351.1 ±49.0 26   449.2 ±94.2
1995-1997 22   37.8 ±9.1 57   337.0 ±48.6 25   438.1 ±94.5
1994-1996 22   38.7 ±9.2 59   356.7 ±50.3 25   444.3 ±96.4
1993-1995 22   39.0 ±9.3 57   348.0 ±49.9 27   500.0 ±102.9
1992-1994 23   41.0 ±9.6 55   335.6 ±49.4 27   517.9 ±105.7
1991-1993 24   41.9 ±9.7 54   334.9 ±49.6 29   561.8 ±110.7
1990-1992 21   38.0 ±9.3 57   357.2 ±51.4 29   582.9 ±113.9
1989-1991 19   34.9 ±9.0 61   386.4 ±53.5 30   608.3 ±117.8
1988-1990 18   32.2 ±8.7 62   393.8 ±54.2 25   528.6 ±112.7
1987-1989 18   33.9 ±9.0 57   363.3 ±52.3 23   500.8 ±111.8
1986-1988 17   31.7 ±8.7 52   333.8 ±50.4 20   446.6 ±107.8
1985-1987 18   33.9 ±9.1 45   289.5 ±47.3 22   505.1 ±115.3

 

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.
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