Table 16-B
Invasive Breast Cancer Incidence by Age at Diagnosis for Females,
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 40   2.1 ±0.4 258   44.2 ±3.1 1,097   160.8 ±5.5 1,395   44.2 ±1.3
2010-2012 33   1.7 ±0.3 258   43.8 ±3.1 1,094   157.1 ±5.3 1,384   43.4 ±1.3
2009-2011 29   1.5 ±0.3 260   43.6 ±3.1 1,099   154.9 ±5.2 1,388   43.1 ±1.3
2008-2010 25   1.3 ±0.3 283   46.5 ±3.1 1,116   154.1 ±5.2 1,424   43.6 ±1.3
2007-2009 29   1.5 ±0.3 306   49.2 ±3.2 1,140   153.8 ±5.1 1,474   44.4 ±1.3
2006-2008 34   1.7 ±0.3 299   46.8 ±3.1 1,189   156.7 ±5.1 1,522   45.0 ±1.3
2005-2007 41   2.0 ±0.4 301   45.9 ±3.0 1,223   157.7 ±5.1 1,563   45.6 ±1.3
2004-2006 41   2.0 ±0.4 304   45.1 ±2.9 1,260   160.0 ±5.1 1,604   46.2 ±1.3
2003-2005 44   2.2 ±0.4 327   47.3 ±3.0 1,247   157.1 ±5.0 1,617   46.1 ±1.3
2002-2004 38   1.9 ±0.3 323   45.6 ±2.9 1,228   154.3 ±4.9 1,588   44.9 ±1.3
2001-2003 35   1.7 ±0.3 333   45.9 ±2.8 1,203   151.5 ±4.9 1,570   44.2 ±1.2
2000-2002 29   1.4 ±0.3 333   45.2 ±2.8 1,191   150.8 ±4.9 1,553   43.5 ±1.2
1999-2001 33   1.6 ±0.3 336   44.9 ±2.8 1,196   152.8 ±5.0 1,564   43.7 ±1.2
1998-2000 33   1.6 ±0.3 339   44.7 ±2.7 1,184   153.1 ±5.0 1,555   43.4 ±1.2
1997-1999 36   1.7 ±0.3 350   45.4 ±2.7 1,173   153.8 ±5.0 1,558   43.4 ±1.2
1996-1998 34   1.7 ±0.3 358   45.6 ±2.7 1,151   153.0 ±5.1 1,542   42.9 ±1.2
1995-1997 37   1.8 ±0.3 355   44.5 ±2.7 1,119   152.0 ±5.1 1,510   42.0 ±1.2
1994-1996 38   1.8 ±0.3 343   42.5 ±2.6 1,087   152.0 ±5.2 1,467   41.0 ±1.2
1993-1995 38   1.8 ±0.3 352   43.4 ±2.6 1,040   150.9 ±5.3 1,429   40.1 ±1.2
1992-1994 34   1.6 ±0.3 352   43.4 ±2.6 1,035   154.8 ±5.4 1,421   40.0 ±1.2
1991-1993 32   1.5 ±0.3 371   45.8 ±2.7 1,018   156.8 ±5.5 1,420   40.1 ±1.2
1990-1992 30   1.4 ±0.3 372   46.2 ±2.7 1,006   160.1 ±5.7 1,408   40.0 ±1.2
1989-1991 34   1.6 ±0.3 373   46.9 ±2.7 967   159.9 ±5.8 1,374   39.3 ±1.2
1988-1990 35   1.6 ±0.3 353   45.0 ±2.7 919   157.9 ±5.8 1,307   37.6 ±1.2
1987-1989 42   1.9 ±0.3 340   43.9 ±2.7 874   156.0 ±5.9 1,255   36.3 ±1.1
1986-1988 42   1.9 ±0.3 343   45.1 ±2.7 830   155.1 ±6.0 1,214   35.2 ±1.1
1985-1987 45   2.1 ±0.3 350   47.1 ±2.8 791   154.0 ±6.1 1,186   34.6 ±1.1

 

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
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