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Interpretation of Historical Trends Data

Historical Trends (1992-2020)

Incidence, Iowa, Colon & Rectum, All Races (incl Hisp), All Ages, Both Sexes

Incidence, Iowa, Colon & Rectum, All Races (incl Hisp), All Ages, Both Sexes

Line graph with 29 years and 3 segments
During 1992-1999, the APC1 in the rate of cancer was stable: 0.8 with a 95% confidence interval from -0.3 to 2.2.
During 1999-2010, the APC1 in the rate of cancer was falling: -3.0 with a 95% confidence interval from -5.3 to -2.4.
During 2010-2020, the APC1 in the rate of cancer was stable: -1.5 with a 95% confidence interval from -2.3 to 1.6.
Yearly points:
In 1992, the observed rate was 63.7. The estimated rate was 62.2.
In 1993, the observed rate was 65.0. The estimated rate was 62.7.
In 1994, the observed rate was 60.3. The estimated rate was 63.2.
In 1995, the observed rate was 61.8. The estimated rate was 63.7.
In 1996, the observed rate was 62.8. The estimated rate was 64.2.
In 1997, the observed rate was 64.4. The estimated rate was 64.7.
In 1998, the observed rate was 66.6. The estimated rate was 65.2.
In 1999, the observed rate was 65.9. The estimated rate was 65.7.
In 2000, the observed rate was 62.4. The estimated rate was 63.7.
In 2001, the observed rate was 63.3. The estimated rate was 61.8.
In 2002, the observed rate was 61.2. The estimated rate was 60.0.
In 2003, the observed rate was 57.3. The estimated rate was 58.2.
In 2004, the observed rate was 56.3. The estimated rate was 56.5.
In 2005, the observed rate was 54.6. The estimated rate was 54.8.
In 2006, the observed rate was 54.7. The estimated rate was 53.2.
In 2007, the observed rate was 50.9. The estimated rate was 51.6.
In 2008, the observed rate was 51.5. The estimated rate was 50.0.
In 2009, the observed rate was 47.8. The estimated rate was 48.6.
In 2010, the observed rate was 46.6. The estimated rate was 47.1.
In 2011, the observed rate was 46.0. The estimated rate was 46.4.
In 2012, the observed rate was 44.8. The estimated rate was 45.8.
In 2013, the observed rate was 43.6. The estimated rate was 45.1.
In 2014, the observed rate was 46.9. The estimated rate was 44.4.
In 2015, the observed rate was 44.4. The estimated rate was 43.8.
In 2016, the observed rate was 43.6. The estimated rate was 43.1.
In 2017, the observed rate was 41.9. The estimated rate was 42.5.
In 2018, the observed rate was 40.9. The estimated rate was 41.9.
In 2019, the observed rate was 41.6. The estimated rate was 41.3.
In 2020, the observed rate was 35.7. The estimated rate was 0.0.

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