State Cancer Profiles

Interpretation of Historical Trends Data

Historical Trends (1975-2018)

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

Line graph with 44 years and 2 segments
During 1975-1993, the APC¹ in the rate of cancer was rising: 0.5 with a 95% confidence interval from 0.4 to 0.7.
During 1993-2018, the APC¹ in the rate of cancer was falling: -0.9 with a 95% confidence interval from -1.0 to -0.8.
Yearly points:
In 1975, the observed rate was 609.2. The estimated rate was 610.1.
In 1976, the observed rate was 627.5. The estimated rate was 613.4.
In 1977, the observed rate was 601.4. The estimated rate was 616.7.
In 1978, the observed rate was 613.9. The estimated rate was 620.0.
In 1979, the observed rate was 632.7. The estimated rate was 623.4.
In 1980, the observed rate was 617.9. The estimated rate was 626.8.
In 1981, the observed rate was 629.7. The estimated rate was 630.1.
In 1982, the observed rate was 633.5. The estimated rate was 633.6.
In 1983, the observed rate was 650.5. The estimated rate was 637.0.
In 1984, the observed rate was 634.1. The estimated rate was 640.4.
In 1985, the observed rate was 667.2. The estimated rate was 643.9.
In 1986, the observed rate was 635.3. The estimated rate was 647.4.
In 1987, the observed rate was 638.4. The estimated rate was 650.9.
In 1988, the observed rate was 660.5. The estimated rate was 654.4.
In 1989, the observed rate was 659.1. The estimated rate was 657.9.
In 1990, the observed rate was 641.4. The estimated rate was 661.5.
In 1991, the observed rate was 668.0. The estimated rate was 665.1.
In 1992, the observed rate was 671.6. The estimated rate was 668.7.
In 1993, the observed rate was 668.4. The estimated rate was 672.3.
In 1994, the observed rate was 676.9. The estimated rate was 666.2.
In 1995, the observed rate was 630.3. The estimated rate was 660.1.
In 1996, the observed rate was 657.9. The estimated rate was 654.1.
In 1997, the observed rate was 640.7. The estimated rate was 648.1.
In 1998, the observed rate was 640.0. The estimated rate was 642.2.
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 630.6.
In 2001, the observed rate was 629.7. The estimated rate was 624.9.
In 2002, the observed rate was 632.6. The estimated rate was 619.2.
In 2003, the observed rate was 626.8. The estimated rate was 613.5.
In 2004, the observed rate was 611.6. The estimated rate was 608.0.
In 2005, the observed rate was 613.5. The estimated rate was 602.4.
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 591.5.
In 2008, the observed rate was 591.5. The estimated rate was 586.1.
In 2009, the observed rate was 566.7. The estimated rate was 580.8.
In 2010, the observed rate was 570.8. The estimated rate was 575.5.
In 2011, the observed rate was 579.2. The estimated rate was 570.3.
In 2012, the observed rate was 566.5. The estimated rate was 565.1.
In 2013, the observed rate was 566.3. The estimated rate was 559.9.
In 2014, the observed rate was 560.9. The estimated rate was 554.8.
In 2015, the observed rate was 555.3. The estimated rate was 549.8.
In 2016, the observed rate was 537.9. The estimated rate was 544.8.
In 2017, the observed rate was 531.0. The estimated rate was 539.8.
In 2018, the observed rate was 522.1. The estimated rate was 534.9.

Notes:

Created by statecancerprofiles.cancer.gov on 07/29/2021 11:04 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 (2001-2017) - 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 1969-2017 US Population Data File is used with SEER November 2017 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. 1969-2017 US Population Data File is used with mortality data.