Table New-B
Invasive Breast Cancer Incidence by Age at Diagnosis for Females,
Michigan Residents, 1985 - 2019
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
2017-2019 49   2.6 ±0.4 278   46.5 ±3.1 985   163.3 ±5.8 1,311   42.8 ±1.3
2016-2018 44   2.4 ±0.4 289   48.6 ±3.2 983   161.0 ±5.8 1,316   42.8 ±1.3
2015-2017 37   2.0 ±0.4 276   46.7 ±3.2 988   159.3 ±5.7 1,300   42.1 ±1.3
2014-2016 30   1.6 ±0.3 261   44.5 ±3.1 1,001   158.3 ±5.6 1,291   41.7 ±1.3
2013-2015 33   1.7 ±0.3 251   42.9 ±3.1 1,028   158.5 ±5.6 1,311   42.0 ±1.3
2012-2014 36   1.9 ±0.4 268   45.9 ±3.2 1,061   159.5 ±5.5 1,364   43.4 ±1.3
2011-2013 41   2.2 ±0.4 265   45.3 ±3.1 1,104   161.9 ±5.5 1,410   44.6 ±1.3
2010-2012 34   1.8 ±0.3 262   44.5 ±3.1 1,101   158.1 ±5.3 1,396   43.8 ±1.3
2009-2011 30   1.5 ±0.3 262   43.8 ±3.1 1,103   155.4 ±5.3 1,394   43.2 ±1.3
2008-2010 26   1.3 ±0.3 283   46.5 ±3.1 1,119   154.5 ±5.2 1,427   43.7 ±1.3
2007-2009 29   1.5 ±0.3 306   49.2 ±3.2 1,141   153.9 ±5.1 1,476   44.4 ±1.3
2006-2008 35   1.7 ±0.3 300   47.0 ±3.1 1,191   156.9 ±5.1 1,525   45.1 ±1.3
2005-2007 41   2.0 ±0.4 302   46.1 ±3.0 1,225   158.0 ±5.1 1,567   45.7 ±1.3
2004-2006 41   2.0 ±0.4 304   45.1 ±2.9 1,263   160.4 ±5.1 1,608   46.3 ±1.3
2003-2005 43   2.1 ±0.4 326   47.2 ±3.0 1,250   157.5 ±5.0 1,619   46.1 ±1.3
2002-2004 37   1.8 ±0.3 322   45.5 ±2.9 1,229   154.4 ±4.9 1,588   44.9 ±1.3
2001-2003 35   1.7 ±0.3 332   45.8 ±2.8 1,204   151.6 ±4.9 1,570   44.2 ±1.2
2000-2002 29   1.4 ±0.3 333   45.1 ±2.8 1,190   150.7 ±4.9 1,552   43.5 ±1.2
1999-2001 33   1.6 ±0.3 335   44.8 ±2.8 1,196   152.8 ±5.0 1,563   43.7 ±1.2
1998-2000 33   1.6 ±0.3 339   44.8 ±2.7 1,183   153.1 ±5.0 1,555   43.4 ±1.2
1997-1999 36   1.7 ±0.3 350   45.5 ±2.7 1,173   153.9 ±5.0 1,559   43.4 ±1.2
1996-1998 34   1.6 ±0.3 358   45.7 ±2.7 1,151   153.0 ±5.1 1,543   42.9 ±1.2
1995-1997 36   1.7 ±0.3 355   44.5 ±2.7 1,120   152.2 ±5.1 1,511   42.1 ±1.2
1994-1996 38   1.8 ±0.3 342   42.4 ±2.6 1,088   152.2 ±5.2 1,468   41.0 ±1.2
1993-1995 38   1.8 ±0.3 352   43.4 ±2.6 1,042   151.1 ±5.3 1,431   40.2 ±1.2
1992-1994 34   1.6 ±0.3 352   43.4 ±2.6 1,037   155.0 ±5.4 1,422   40.1 ±1.2
1991-1993 32   1.5 ±0.3 371   45.8 ±2.7 1,018   156.9 ±5.5 1,420   40.2 ±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   159.8 ±5.8 1,374   39.3 ±1.2
1988-1990 35   1.7 ±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   44.0 ±2.7 874   156.0 ±5.9 1,255   36.3 ±1.1
1986-1988 42   1.9 ±0.3 343   45.1 ±2.7 831   155.1 ±6.0 1,215   35.3 ±1.1
1985-1987 45   2.1 ±0.3 351   47.2 ±2.8 792   154.2 ±6.2 1,188   34.7 ±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, 2021. Division for Vital Records & Health Statistics, Michigan Department of Health & Human Services.
Last Updated: April 20, 2022
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