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Interpretation of Historical Trends Data

Historical Trends (1975-2016)

Incidence, Iowa, Breast, All Races (incl Hisp), All Ages, Female

Incidence, Iowa, Breast, All Races (incl Hisp), All Ages, Female

Line graph with 42 years and 4 segments
During 1975-1982, the APC1 in the rate of cancer was stable: 0.3 with a 95% confidence interval from -1.3 to 2.0.
During 1982-1988, the APC1 in the rate of cancer was rising: 4.8 with a 95% confidence interval from 2.2 to 7.5.
During 1988-2013, the APC1 in the rate of cancer was falling: -0.3 with a 95% confidence interval from -0.5 to -0.1.
During 2013-2016, the APC1 in the rate of cancer was stable: 2.4 with a 95% confidence interval from -2.5 to 7.4.
Yearly points:
In 1975, the observed rate was 98.9. The estimated rate was 97.4.
In 1976, the observed rate was 96.8. The estimated rate was 97.7.
In 1977, the observed rate was 96.1. The estimated rate was 98.0.
In 1978, the observed rate was 96.9. The estimated rate was 98.2.
In 1979, the observed rate was 99.4. The estimated rate was 98.5.
In 1980, the observed rate was 99.7. The estimated rate was 98.8.
In 1981, the observed rate was 104.1. The estimated rate was 99.1.
In 1982, the observed rate was 97.2. The estimated rate was 99.4.
In 1983, the observed rate was 103.0. The estimated rate was 104.2.
In 1984, the observed rate was 107.6. The estimated rate was 109.2.
In 1985, the observed rate was 112.3. The estimated rate was 114.5.
In 1986, the observed rate was 122.5. The estimated rate was 120.0.
In 1987, the observed rate was 126.8. The estimated rate was 125.8.
In 1988, the observed rate was 135.3. The estimated rate was 131.9.
In 1989, the observed rate was 123.9. The estimated rate was 131.5.
In 1990, the observed rate was 126.5. The estimated rate was 131.1.
In 1991, the observed rate was 126.4. The estimated rate was 130.7.
In 1992, the observed rate was 132.7. The estimated rate was 130.3.
In 1993, the observed rate was 128.1. The estimated rate was 129.9.
In 1994, the observed rate was 126.5. The estimated rate was 129.6.
In 1995, the observed rate was 127.1. The estimated rate was 129.2.
In 1996, the observed rate was 124.6. The estimated rate was 128.8.
In 1997, the observed rate was 131.2. The estimated rate was 128.4.
In 1998, the observed rate was 139.7. The estimated rate was 128.1.
In 1999, the observed rate was 136.2. The estimated rate was 127.7.
In 2000, the observed rate was 128.2. The estimated rate was 127.3.
In 2001, the observed rate was 132.8. The estimated rate was 126.9.
In 2002, the observed rate was 133.2. The estimated rate was 126.6.
In 2003, the observed rate was 122.8. The estimated rate was 126.2.
In 2004, the observed rate was 122.3. The estimated rate was 125.8.
In 2005, the observed rate was 122.6. The estimated rate was 125.5.
In 2006, the observed rate was 121.5. The estimated rate was 125.1.
In 2007, the observed rate was 123.5. The estimated rate was 124.7.
In 2008, the observed rate was 120.7. The estimated rate was 124.4.
In 2009, the observed rate was 125.9. The estimated rate was 124.0.
In 2010, the observed rate was 127.0. The estimated rate was 123.6.
In 2011, the observed rate was 127.3. The estimated rate was 123.3.
In 2012, the observed rate was 115.0. The estimated rate was 122.9.
In 2013, the observed rate was 119.0. The estimated rate was 122.6.
In 2014, the observed rate was 127.1. The estimated rate was 125.4.
In 2015, the observed rate was 130.5. The estimated rate was 128.4.
In 2016, the observed rate was 129.4. The estimated rate was 131.4.

Notes: