State Cancer Profiles

Interpretation of Historical Trends Data

Historical Trends (1992-2020)

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

Incidence, Iowa, All Cancer Sites, Black 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: -0.2 with a 95% confidence interval from -0.7 to 0.3.
Yearly points:
In 1992, the observed rate was 571.2. The estimated rate was 568.5.
In 1993, the observed rate was 533.1. The estimated rate was 567.1.
In 1994, the observed rate was 602.5. The estimated rate was 565.8.
In 1995, the observed rate was 687.4. The estimated rate was 564.4.
In 1996, the observed rate was 486.0. The estimated rate was 563.0.
In 1997, the observed rate was 531.1. The estimated rate was 561.7.
In 1998, the observed rate was 604.2. The estimated rate was 560.3.
In 1999, the observed rate was 613.5. The estimated rate was 558.9.
In 2000, the observed rate was 495.7. The estimated rate was 557.6.
In 2001, the observed rate was 547.7. The estimated rate was 556.2.
In 2002, the observed rate was 510.5. The estimated rate was 554.9.
In 2003, the observed rate was 536.0. The estimated rate was 553.5.
In 2004, the observed rate was 503.4. The estimated rate was 552.2.
In 2005, the observed rate was 593.3. The estimated rate was 550.9.
In 2006, the observed rate was 611.5. The estimated rate was 549.5.
In 2007, the observed rate was 533.5. The estimated rate was 548.2.
In 2008, the observed rate was 577.3. The estimated rate was 546.9.
In 2009, the observed rate was 563.9. The estimated rate was 545.5.
In 2010, the observed rate was 471.1. The estimated rate was 544.2.
In 2011, the observed rate was 553.9. The estimated rate was 542.9.
In 2012, the observed rate was 477.1. The estimated rate was 541.6.
In 2013, the observed rate was 508.2. The estimated rate was 540.3.
In 2014, the observed rate was 537.0. The estimated rate was 539.0.
In 2015, the observed rate was 500.3. The estimated rate was 537.7.
In 2016, the observed rate was 511.9. The estimated rate was 536.4.
In 2017, the observed rate was 545.4. The estimated rate was 535.1.
In 2018, the observed rate was 590.5. The estimated rate was 533.8.
In 2019, the observed rate was 569.0. The estimated rate was 532.5.
In 2020, the observed rate was 513.2. The estimated rate was 0.0.

Notes:

• Created by statecancerprofiles.cancer.gov on 04/29/2024 1:22 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.