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Interpretation of Incidence Rates Data

Incidence Rate Report for Illinois by County

Breast (All Stages^), 2017-2021

All Races (includes Hispanic), Female, All Ages

Sorted by Count

Explanation of Column Headers

Objective - The objective of *** is from the Healthy People 2020 project done by the Centers for Disease Control and Prevention.

Incidence Rate (95% Confidence Interval) - The incidence rate is based upon 100,000 people and is an annual rate (or average annual rate) based on the time period indicated. Rates are age-adjusted by 5-year age groups to the 2000 U.S. standard million population.

Recent Trends - This is an interpretation of the AAPC/APC:

AAPC/APC (95% Confidence Interval) - the change in rate over time


Other Notes


Line by Line Interpretation of the Report


Illinois7


US (SEER+NPCR)1


Cook County7


DuPage County7


Lake County7


Will County7


Kane County7


McHenry County7


Madison County7


Winnebago County7


St. Clair County7


Sangamon County7


Peoria County7


Champaign County7


McLean County7


Tazewell County7


Rock Island County7


Kankakee County7


Kendall County7


La Salle County7


Macon County7


DeKalb County7


Vermilion County7


Adams County7


Williamson County7


Knox County7


Grundy County7


Ogle County7


Whiteside County7


Macoupin County7


Henry County7


Woodford County7


Boone County7


Stephenson County7


Coles County7


Morgan County7


Jackson County7


Monroe County7


Fulton County7


Franklin County7


Bureau County7


Clinton County7


Livingston County7


Marion County7


Effingham County7


Christian County7


Lee County7


Randolph County7


Jefferson County7


Iroquois County7


Logan County7


Montgomery County7


Jo Daviess County7


Shelby County7


Jersey County7


McDonough County7


Saline County7


Fayette County7


Douglas County7


Bond County7


Perry County7


Crawford County7


Pike County7


Union County7


Wayne County7


Piatt County7


Warren County7


Mercer County7


Carroll County7


Edgar County7


Hancock County7


Lawrence County7


Washington County7


Mason County7


Moultrie County7


Clay County7


Richland County7


Menard County7


De Witt County7


Ford County7


Greene County7


White County7


Johnson County7


Clark County7


Cumberland County7


Marshall County7


Massac County7


Jasper County7


Wabash County7


Cass County7


Calhoun County7


Scott County7


Pulaski County7


Edwards County7


Hamilton County7


Putnam County7


Gallatin County7


Henderson County7


Schuyler County7


Alexander County7


Stark County7


Brown County7


Hardin County7 Pope County7

Notes:
Created by statecancerprofiles.cancer.gov on 07/11/2025 10:53 pm.

State Cancer Registries may provide more current or more local data.
Trend
Rising when 95% confidence interval of average annual percent change is above 0.
Stable when 95% confidence interval of average annual percent change includes 0.
Falling when 95% confidence interval of average annual percent change is below 0.

† Incidence rates (cases 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+). Rates are for invasive cancer only (except for bladder cancer which is invasive and in situ) or unless otherwise specified. Rates calculated using SEER*Stat. Population counts for denominators are based on Census populations as modified by NCI. The US Population Data File is used for SEER and NPCR incidence rates.
‡ Incidence data come from different sources. The Average Annual Percent Change (AAPC) is based on the APCs calculated by Joinpoint. Due to data availability issues, the time period used in the calculation of the joinpoint regression model may differ for selected counties.

Rates and trends are computed using different standards for malignancy. For more information see malignant.html.

^ All Stages refers to any stage in the Surveillance, Epidemiology, and End Results (SEER) Summary/Historic Combined Summary Stage (2004+).
⋔ Results presented with the CI*Rank statistics help show the usefulness of ranks. For example, ranks for relatively rare diseases or less populated areas may be essentially meaningless because of their large variability, but ranks for more common diseases in densely populated regions can be very useful. More information about methodology can be found on the CI*Rank website.

Φ Rural-Urban Continuum Codes provided by the USDA.
* Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 records were reported in a specific area-sex-race category. If an average count of 3 is shown, the total number of cases for the time period is 16 or more which exceeds suppression threshold (but is rounded to 3).
1 Source: National Program of Cancer Registries and Surveillance, Epidemiology, and End Results SEER*Stat Database - United States Department of Health and Human Services, Centers for Disease Control and Prevention and National Cancer Institute. Based on the 2023 submission.
7 Source: SEER November 2023 submission.
8 Source: Incidence data provided by the SEER Program. AAPCs are calculated by the Joinpoint Regression Program and are based on APCs. Data 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 Population Data File is used with SEER November 2023 data.

Data for the United States does not include data from Indiana.
Data for the United States does not include Puerto Rico.