State Cancer Profiles

Interpretation of Historical Trends Data

Historical Trends (1990-2022)

Mortality, Delaware, All Cancer Sites, Black Non-Hispanic, All Ages, Both Sexes

Line graph with 33 years and 2 segments
During 1990-2007, the APC¹ in the rate of cancer was falling: -3.3 with a 95% confidence interval from -6.3 to -2.6.
During 2007-2022, the APC¹ in the rate of cancer was stable: -1.4 with a 95% confidence interval from -2.1 to 2.2.
Yearly points:
In 1990, the observed rate was 342.6. The estimated rate was 363.4.
In 1991, the observed rate was 350.4. The estimated rate was 351.4.
In 1992, the observed rate was 305.3. The estimated rate was 339.7.
In 1993, the observed rate was 344.3. The estimated rate was 328.4.
In 1994, the observed rate was 303.9. The estimated rate was 317.5.
In 1995, the observed rate was 317.1. The estimated rate was 307.0.
In 1996, the observed rate was 346.8. The estimated rate was 296.8.
In 1997, the observed rate was 300.0. The estimated rate was 286.9.
In 1998, the observed rate was 255.9. The estimated rate was 277.4.
In 1999, the observed rate was 293.6. The estimated rate was 268.2.
In 2000, the observed rate was 230.7. The estimated rate was 259.3.
In 2001, the observed rate was 248.2. The estimated rate was 250.7.
In 2002, the observed rate was 226.9. The estimated rate was 242.3.
In 2003, the observed rate was 254.0. The estimated rate was 234.3.
In 2004, the observed rate was 222.9. The estimated rate was 226.5.
In 2005, the observed rate was 227.4. The estimated rate was 219.0.
In 2006, the observed rate was 213.3. The estimated rate was 211.7.
In 2007, the observed rate was 190.1. The estimated rate was 204.7.
In 2008, the observed rate was 198.6. The estimated rate was 201.9.
In 2009, the observed rate was 199.3. The estimated rate was 199.2.
In 2010, the observed rate was 197.1. The estimated rate was 196.5.
In 2011, the observed rate was 198.3. The estimated rate was 193.8.
In 2012, the observed rate was 209.7. The estimated rate was 191.2.
In 2013, the observed rate was 177.9. The estimated rate was 188.6.
In 2014, the observed rate was 183.3. The estimated rate was 186.0.
In 2015, the observed rate was 170.9. The estimated rate was 183.5.
In 2016, the observed rate was 175.8. The estimated rate was 181.0.
In 2017, the observed rate was 191.5. The estimated rate was 178.6.
In 2018, the observed rate was 169.5. The estimated rate was 176.1.
In 2019, the observed rate was 167.4. The estimated rate was 173.7.
In 2020, the observed rate was 170.0. The estimated rate was 171.4.
In 2021, the observed rate was 170.0. The estimated rate was 169.1.
In 2022, the observed rate was 174.0. The estimated rate was 166.8.

Notes:

Created by statecancerprofiles.cancer.gov on 07/15/2025 3:42 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.

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.