State Cancer Profiles

Interpretation of Historical Trends Data

Historical Trends (1992-2021)

Incidence, Iowa, All Cancer Sites, All Races (incl Hisp), All Ages, Male

Incidence, Iowa, All Cancer Sites, All Races (incl Hisp), All Ages, Male

Line graph with 30 years and 4 segments
During 1992-1994, the APC¹ in the rate of cancer was falling: -5.7 with a 95% confidence interval from -7.3 to -1.5.
During 1994-2009, the APC¹ in the rate of cancer was stable: 0.0 with a 95% confidence interval from -0.2 to 1.7.
During 2009-2012, the APC¹ in the rate of cancer was falling: -2.5 with a 95% confidence interval from -3.4 to -0.6.
During 2012-2021, the APC¹ in the rate of cancer was stable: 0.4 with a 95% confidence interval from -0.1 to 1.7.
Yearly points:
In 1992, the observed rate was 634.1. The estimated rate was 639.8.
In 1993, the observed rate was 614.8. The estimated rate was 603.7.
In 1994, the observed rate was 560.5. The estimated rate was 569.6.
In 1995, the observed rate was 567.7. The estimated rate was 569.6.
In 1996, the observed rate was 562.0. The estimated rate was 569.6.
In 1997, the observed rate was 572.4. The estimated rate was 569.7.
In 1998, the observed rate was 555.0. The estimated rate was 569.7.
In 1999, the observed rate was 580.1. The estimated rate was 569.7.
In 2000, the observed rate was 577.2. The estimated rate was 569.7.
In 2001, the observed rate was 580.2. The estimated rate was 569.8.
In 2002, the observed rate was 577.3. The estimated rate was 569.8.
In 2003, the observed rate was 565.6. The estimated rate was 569.8.
In 2004, the observed rate was 567.4. The estimated rate was 569.9.
In 2005, the observed rate was 577.7. The estimated rate was 569.9.
In 2006, the observed rate was 573.8. The estimated rate was 569.9.
In 2007, the observed rate was 562.4. The estimated rate was 570.0.
In 2008, the observed rate was 561.5. The estimated rate was 570.0.
In 2009, the observed rate was 565.9. The estimated rate was 570.0.
In 2010, the observed rate was 555.1. The estimated rate was 555.7.
In 2011, the observed rate was 553.9. The estimated rate was 541.8.
In 2012, the observed rate was 525.2. The estimated rate was 528.2.
In 2013, the observed rate was 522.8. The estimated rate was 530.5.
In 2014, the observed rate was 533.6. The estimated rate was 532.8.
In 2015, the observed rate was 534.9. The estimated rate was 535.0.
In 2016, the observed rate was 531.1. The estimated rate was 537.3.
In 2017, the observed rate was 541.3. The estimated rate was 539.6.
In 2018, the observed rate was 546.5. The estimated rate was 541.9.
In 2019, the observed rate was 555.1. The estimated rate was 544.3.
In 2020, the observed rate was 507.3. The estimated rate was N/A.
In 2021, the observed rate was 539.9. The estimated rate was 548.9.

Notes:

• Created by statecancerprofiles.cancer.gov on 12/10/2024 6:47 pm.
• Regression lines calculated using the Joinpoint Regression Program (Version 5.1).
• 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.

  
  

  The 2020 incidence rate is displayed but not used in the fit of the trend line(s). Impact of COVID on SEER Cancer Incidence 2020 data.

  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.