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Interpretation of Incidence Rates Data

Incidence Rate Report for Iowa by County

Thyroid (All Stages^), 2018-2022

All Races (includes Hispanic), Both Sexes, All Ages

Sorted by Rate

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


Iowa7


US (SEER+NPCR)1


Marshall County7


Des Moines County7


Black Hawk County7


Webster County7


Clinton County7


Story County7


Warren County7


Johnson County7


Jasper County7


Lee County7


Bremer County7


Pottawattamie County7


Fayette County7


Wapello County7


Winneshiek County7


Woodbury County7


Polk County7


Muscatine County7


Scott County7


Dallas County7


Marion County7


Buchanan County7


Henry County7


Cerro Gordo County7


Dubuque County7


Linn County7


Carroll County7


Crawford County7


Jones County7


Sioux County7


Jackson County7


Plymouth County7


Iowa County7


Washington County7


Clay County7


Floyd County7


Delaware County7


Benton County7


Cass County7


Adair County7 Adams County7 Allamakee County7 Appanoose County7 Audubon County7 Boone County7 Buena Vista County7 Butler County7 Calhoun County7 Cedar County7 Cherokee County7 Chickasaw County7 Clarke County7 Clayton County7 Davis County7 Decatur County7 Dickinson County7 Emmet County7 Franklin County7 Fremont County7 Greene County7 Grundy County7 Guthrie County7 Hamilton County7 Hancock County7 Hardin County7 Harrison County7 Howard County7 Humboldt County7 Ida County7 Jefferson County7 Keokuk County7 Kossuth County7 Louisa County7 Lucas County7 Lyon County7 Madison County7 Mahaska County7 Mills County7 Mitchell County7 Monona County7 Monroe County7 Montgomery County7 O'Brien County7 Osceola County7 Page County7 Palo Alto County7 Pocahontas County7 Poweshiek County7 Ringgold County7 Sac County7 Shelby County7 Tama County7 Taylor County7 Union County7 Van Buren County7 Wayne County7 Winnebago County7 Worth County7 Wright County7


Notes:
Created by statecancerprofiles.cancer.gov on 03/23/2026 4:39 pm.

State Cancer Registries may provide more current or more local data.

† 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.

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.

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.

Source: SEER and NPCR data. For more specific information please see the table.

* 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.