State Cancer Profiles

Interpretation of Historical Trends Data

Historical Trends (1975-2019)

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

Line graph with 45 years and 2 segments
During 1975-1994, the APC¹ in the rate of cancer was rising: 0.5 with a 95% confidence interval from 0.3 to 0.6.
During 1994-2019, the APC¹ in the rate of cancer was falling: -1.0 with a 95% confidence interval from -1.1 to -0.9.
Yearly points:
In 1975, the observed rate was 609.2. The estimated rate was 612.1.
In 1976, the observed rate was 627.5. The estimated rate was 615.1.
In 1977, the observed rate was 601.4. The estimated rate was 618.1.
In 1978, the observed rate was 613.9. The estimated rate was 621.1.
In 1979, the observed rate was 632.7. The estimated rate was 624.1.
In 1980, the observed rate was 617.9. The estimated rate was 627.1.
In 1981, the observed rate was 629.7. The estimated rate was 630.2.
In 1982, the observed rate was 633.5. The estimated rate was 633.2.
In 1983, the observed rate was 650.5. The estimated rate was 636.3.
In 1984, the observed rate was 634.1. The estimated rate was 639.4.
In 1985, the observed rate was 667.2. The estimated rate was 642.5.
In 1986, the observed rate was 635.3. The estimated rate was 645.6.
In 1987, the observed rate was 638.4. The estimated rate was 648.8.
In 1988, the observed rate was 660.5. The estimated rate was 651.9.
In 1989, the observed rate was 659.1. The estimated rate was 655.1.
In 1990, the observed rate was 641.4. The estimated rate was 658.3.
In 1991, the observed rate was 668.0. The estimated rate was 661.5.
In 1992, the observed rate was 671.6. The estimated rate was 664.7.
In 1993, the observed rate was 668.4. The estimated rate was 667.9.
In 1994, the observed rate was 676.9. The estimated rate was 671.1.
In 1995, the observed rate was 630.3. The estimated rate was 664.6.
In 1996, the observed rate was 657.9. The estimated rate was 658.2.
In 1997, the observed rate was 640.7. The estimated rate was 651.8.
In 1998, the observed rate was 640.0. The estimated rate was 645.4.
In 1999, the observed rate was 634.3. The estimated rate was 639.2.
In 2000, the observed rate was 636.4. The estimated rate was 633.0.
In 2001, the observed rate was 629.7. The estimated rate was 626.8.
In 2002, the observed rate was 632.6. The estimated rate was 620.7.
In 2003, the observed rate was 626.8. The estimated rate was 614.7.
In 2004, the observed rate was 611.6. The estimated rate was 608.7.
In 2005, the observed rate was 613.5. The estimated rate was 602.8.
In 2006, the observed rate was 597.7. The estimated rate was 596.9.
In 2007, the observed rate was 590.1. The estimated rate was 591.1.
In 2008, the observed rate was 591.5. The estimated rate was 585.4.
In 2009, the observed rate was 566.7. The estimated rate was 579.7.
In 2010, the observed rate was 570.8. The estimated rate was 574.1.
In 2011, the observed rate was 579.2. The estimated rate was 568.5.
In 2012, the observed rate was 566.5. The estimated rate was 563.0.
In 2013, the observed rate was 566.3. The estimated rate was 557.5.
In 2014, the observed rate was 560.9. The estimated rate was 552.1.
In 2015, the observed rate was 555.3. The estimated rate was 546.7.
In 2016, the observed rate was 537.8. The estimated rate was 541.4.
In 2017, the observed rate was 532.1. The estimated rate was 536.2.
In 2018, the observed rate was 523.5. The estimated rate was 530.9.
In 2019, the observed rate was 507.0. The estimated rate was 525.8.

Notes:

Created by statecancerprofiles.cancer.gov on 05/29/2022 7:50 am.
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.
Source: Incidence data provided by the SEER Program and the National Program of Cancer Registries SEER*Stat Database (2001-2018) - United States Department of Health and Human Services, Centers for Disease Control and Prevention (based on the 2019 submission). 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 1969-2018 US Population Data File is used with SEER November 2020 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. 1969-2018 US Population Data File is used with mortality data.