State Cancer Profiles

Interpretation of Historical Trends Data

Historical Trends (1992-2020)

Incidence, Iowa, All Cancer Sites, API Non-Hispanic, All Ages, Both Sexes

Incidence, Iowa, All Cancer Sites, API Non-Hispanic, All Ages, Both Sexes

Line graph with 29 years and 1 segments
During 1992-2020, the APC¹ in the rate of cancer was stable: -0.6 with a 95% confidence interval from -1.2 to 0.2.
Yearly points:
In 1992, the observed rate was 360.8. The estimated rate was 346.9.
In 1993, the observed rate was 386.2. The estimated rate was 344.8.
In 1994, the observed rate was 346.6. The estimated rate was 342.6.
In 1995, the observed rate was 273.2. The estimated rate was 340.5.
In 1996, the observed rate was 321.3. The estimated rate was 338.4.
In 1997, the observed rate was 467.5. The estimated rate was 336.4.
In 1998, the observed rate was 393.2. The estimated rate was 334.3.
In 1999, the observed rate was 422.2. The estimated rate was 332.2.
In 2000, the observed rate was 397.8. The estimated rate was 330.2.
In 2001, the observed rate was 271.3. The estimated rate was 328.2.
In 2002, the observed rate was 256.6. The estimated rate was 326.1.
In 2003, the observed rate was 341.6. The estimated rate was 324.1.
In 2004, the observed rate was 231.2. The estimated rate was 322.1.
In 2005, the observed rate was 296.8. The estimated rate was 320.2.
In 2006, the observed rate was 332.6. The estimated rate was 318.2.
In 2007, the observed rate was 301.8. The estimated rate was 316.2.
In 2008, the observed rate was 321.6. The estimated rate was 314.3.
In 2009, the observed rate was 292.3. The estimated rate was 312.3.
In 2010, the observed rate was 261.5. The estimated rate was 310.4.
In 2011, the observed rate was 299.3. The estimated rate was 308.5.
In 2012, the observed rate was 349.7. The estimated rate was 306.6.
In 2013, the observed rate was 301.3. The estimated rate was 304.7.
In 2014, the observed rate was 312.9. The estimated rate was 302.9.
In 2015, the observed rate was 292.4. The estimated rate was 301.0.
In 2016, the observed rate was 317.1. The estimated rate was 299.1.
In 2017, the observed rate was 294.7. The estimated rate was 297.3.
In 2018, the observed rate was 287.2. The estimated rate was 295.5.
In 2019, the observed rate was 309.2. The estimated rate was 293.7.
In 2020, the observed rate was 293.8. The estimated rate was 0.0.

Notes:

• Created by statecancerprofiles.cancer.gov on 05/11/2024 12:08 pm.
• Regression lines calculated using the Joinpoint Regression Program (Version 4.8.0.0).
• ¹ The APC is the Annual Percent Change over the time interval. Rates used in the calculation of the APC are age-adjusted to the 2000 US standard population (19 age groups: <1, 1-4, 5-9, ... , 80-84, 85+).


• Explanation of the Calculation of the Trend:
  If the APC is less than -1.5, the trend is falling.
  If the APC is between -1.5 and -0.5, the trend is slightly falling.
  If the APC is between -0.5 and 0.5, the trend is statistically stable.
  If the APC is between 0.5 and 1.5, the trend is slightly rising.
  If the APC is greater than 1.5, the trend is rising.

  Statistics for minorities may be affected by inconsistent race identification between the cancer case reports (sources for numerator of rate) and data from the Census Bureau (source for denominator of rate); and from undercounts of some population groups in the census.
  
  Source: Incidence data provided by the SEER Program and the National Program of Cancer Registries SEER*Stat Database United States Department of Health and Human Services, Centers for Disease Control and Prevention. Rates calculated by the National Cancer Institute using SEER*Stat. Rates are age-adjusted to the 2000 US standard population (19 age groups: <1, 1-4, 5-9, ... , 80-84, 85+). Rates are for invasive cancer only (except for bladder cancer which is invasive and in situ) or unless otherwise specified. Population counts for denominators are based on Census populations as modified by NCI. The US populations included with the data release have been adjusted for the population shifts due to hurricanes Katrina and Rita for 62 counties and parishes in Alabama, Mississippi, Louisiana, and Texas. The US Population Data File is used with SEER data. Rates and trends in this graph are computed using the same standard for malignancy. For more information see malignant.html
  
  Source: Death data provided by the National Vital Statistics System public use data file. Death rates calculated by the National Cancer Institute using SEER*Stat. Death rates (deaths per 100,000 population per year) are age-adjusted to the 2000 US standard population (19 age groups: (<1, 1-4, 5-9, ... , 80-84, 85+). Population counts for denominators are based on Census populations as modified by NCI. The US populations included with the data release have been adjusted for the population shifts due to hurricanes Katrina and Rita for 62 counties and parishes in Alabama, Mississippi, Louisiana, and Texas. US Population Data File is used with mortality data.