Interpretation of Historical Trends Data
Historical Trends (2002-2021)
Incidence, Delaware, All Cancer Sites, Hispanic (any race), All Ages, Both SexesIncidence, Delaware, All Cancer Sites, Hispanic (any race), All Ages, Both Sexes
Line graph with 20 years and 1 segmentsDuring 2002-2021, the APC1 in the rate of cancer was falling: -1.3 with a 95% confidence interval from -2.3 to -0.1.
Yearly points:
In 2002, the observed rate was 383.1. The estimated rate was 458.7.
In 2003, the observed rate was 452.1. The estimated rate was 452.7.
In 2004, the observed rate was 519.6. The estimated rate was 446.8.
In 2005, the observed rate was 449.1. The estimated rate was 440.9.
In 2006, the observed rate was 380.2. The estimated rate was 435.2.
In 2007, the observed rate was 385.6. The estimated rate was 429.5.
In 2008, the observed rate was 457.4. The estimated rate was 423.9.
In 2009, the observed rate was 465.9. The estimated rate was 418.3.
In 2010, the observed rate was 400.5. The estimated rate was 412.9.
In 2011, the observed rate was 413.4. The estimated rate was 407.5.
In 2012, the observed rate was 355.2. The estimated rate was 402.2.
In 2013, the observed rate was 371.4. The estimated rate was 396.9.
In 2014, the observed rate was 421.8. The estimated rate was 391.7.
In 2015, the observed rate was 401.8. The estimated rate was 386.6.
In 2016, the observed rate was 407.6. The estimated rate was 381.5.
In 2017, the observed rate was 380.5. The estimated rate was 376.5.
In 2018, the observed rate was 353.1. The estimated rate was 371.6.
In 2019, the observed rate was 396.3. The estimated rate was 366.8.
In 2020, the observed rate was 312.9. The estimated rate was N/A.
In 2021, the observed rate was 326.2. The estimated rate was 357.2.
Notes:
- Created by statecancerprofiles.cancer.gov on 02/09/2025 12:55 am.
- 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.
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.
For Hispanic incidence data, NHIA (NAACCR Hispanic Identification Algorithm) was used for Hispanic Ethnicity (see Technical Notes section of the USCS ).
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.
Due to data availability issues, the time period used in the calculation of the joinpoint regression model may differ for selected racial groups or counties.