State Cancer Profiles

Interpretation of Historical Trends Data

Historical Trends (1990-2022)

Mortality, Iowa, All Cancer Sites, All Races (incl Hisp), Ages 50+, Both Sexes

Line graph with 33 years and 3 segments
During 1990-1992, the APC¹ in the rate of cancer was stable: 2.3 with a 95% confidence interval from -0.1 to 4.4.
During 1992-2015, the APC¹ in the rate of cancer was falling: -0.9 with a 95% confidence interval from -1.0 to -0.8.
During 2015-2022, the APC¹ in the rate of cancer was falling: -1.9 with a 95% confidence interval from -2.9 to -1.4.
Yearly points:
In 1990, the observed rate was 641.4. The estimated rate was 645.3.
In 1991, the observed rate was 668.0. The estimated rate was 660.3.
In 1992, the observed rate was 671.6. The estimated rate was 675.6.
In 1993, the observed rate was 668.4. The estimated rate was 669.8.
In 1994, the observed rate was 676.9. The estimated rate was 664.1.
In 1995, the observed rate was 630.3. The estimated rate was 658.5.
In 1996, the observed rate was 657.9. The estimated rate was 652.9.
In 1997, the observed rate was 640.7. The estimated rate was 647.3.
In 1998, the observed rate was 640.0. The estimated rate was 641.8.
In 1999, the observed rate was 634.3. The estimated rate was 636.4.
In 2000, the observed rate was 636.4. The estimated rate was 631.0.
In 2001, the observed rate was 629.7. The estimated rate was 625.6.
In 2002, the observed rate was 632.6. The estimated rate was 620.3.
In 2003, the observed rate was 626.8. The estimated rate was 615.0.
In 2004, the observed rate was 611.6. The estimated rate was 609.8.
In 2005, the observed rate was 613.5. The estimated rate was 604.6.
In 2006, the observed rate was 597.7. The estimated rate was 599.5.
In 2007, the observed rate was 590.1. The estimated rate was 594.4.
In 2008, the observed rate was 591.5. The estimated rate was 589.3.
In 2009, the observed rate was 566.7. The estimated rate was 584.3.
In 2010, the observed rate was 570.9. The estimated rate was 579.3.
In 2011, the observed rate was 579.6. The estimated rate was 574.4.
In 2012, the observed rate was 567.4. The estimated rate was 569.5.
In 2013, the observed rate was 567.7. The estimated rate was 564.7.
In 2014, the observed rate was 562.7. The estimated rate was 559.9.
In 2015, the observed rate was 557.5. The estimated rate was 555.1.
In 2016, the observed rate was 540.4. The estimated rate was 544.8.
In 2017, the observed rate was 534.9. The estimated rate was 534.6.
In 2018, the observed rate was 527.5. The estimated rate was 524.6.
In 2019, the observed rate was 511.6. The estimated rate was 514.8.
In 2020, the observed rate was 502.1. The estimated rate was 505.2.
In 2021, the observed rate was 495.8. The estimated rate was 495.8.
In 2022, the observed rate was 489.9. The estimated rate was 486.5.

Notes:

Created by statecancerprofiles.cancer.gov on 07/18/2025 6:40 pm.
Regression lines calculated using the Joinpoint Regression Program (Version 5.3.0).
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.

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.