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Interpretation of Incidence Rates Data

Incidence Rate Report for Illinois by County

Breast (All Stages^), 2018-2022

All Races (includes Hispanic), Female, All Ages

Sorted by Name

Explanation of Column Headers
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


Adams County7


Alexander County7


Bond County7


Boone County7


Brown County7


Bureau County7


Calhoun County7


Carroll County7


Cass County7


Champaign County7


Christian County7


Clark County7


Clay County7


Clinton County7


Coles County7


Cook County7


Crawford County7


Cumberland County7


De Witt County7


DeKalb County7


Douglas County7


DuPage County7


Edgar County7


Edwards County7


Effingham County7


Fayette County7


Ford County7


Franklin County7


Fulton County7


Gallatin County7


Greene County7


Grundy County7


Hamilton County7


Hancock County7


Henderson County7


Henry County7


Iroquois County7


Jackson County7


Jasper County7


Jefferson County7


Jersey County7


Jo Daviess County7


Johnson County7


Kane County7


Kankakee County7


Kendall County7


Knox County7


La Salle County7


Lake County7


Lawrence County7


Lee County7


Livingston County7


Logan County7


Macon County7


Macoupin County7


Madison County7


Marion County7


Marshall County7


Mason County7


Massac County7


McDonough County7


McHenry County7


McLean County7


Menard County7


Mercer County7


Monroe County7


Montgomery County7


Morgan County7


Moultrie County7


Ogle County7


Peoria County7


Perry County7


Piatt County7


Pike County7


Pulaski County7


Putnam County7


Randolph County7


Richland County7


Rock Island County7


Saline County7


Sangamon County7


Schuyler County7


Scott County7


Shelby County7


St. Clair County7


Stark County7


Stephenson County7


Tazewell County7


Union County7


Vermilion County7


Wabash County7


Warren County7


Washington County7


Wayne County7


White County7


Whiteside County7


Will County7


Williamson County7


Winnebago County7


Woodford County7


Hardin County7 Pope County7


Notes:
Created by statecancerprofiles.cancer.gov on 03/15/2026 4:40 am.

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 (SEER areas use 20 age groups and NPCR areas use 19 age groups). 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. Due to changes in stage coding, Combined Summary Stage with Expanded Regional Codes (2004+) is used for data from Surveillance, Epidemiology, and End Results (SEER) databases and Merged Summary Stage is used for data from National Program of Cancer Registries databases. Due to the increased complexity with staging, other staging variables maybe used if necessary.

⋔ 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. The rates used in CI*Rank are all age-adjusted to the 2000 US standard population using 19 age groups for SEER and NPCR areas. More information about methodology can be found on the CI*Rank website.

Φ Rural–urban county classifications are based on the 2023 USDA Rural–Urban Continuum Codes (except for Connecticut Counties which use 2013 codes). State-level cancer rates for rural areas are calculated using cancer cases registered exclusively in rural counties, while state-level cancer rates for urban areas are calculated using cases registered exclusively in urban counties.

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 2024 submission.

7 Source: SEER November 2024 submission.

* 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.

Data for United States does not include Puerto Rico.