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Interpretation of Rate/Trend Comparison by Cancer Data

Death Rate/Trend Comparison by Cancer, 2018-2022

Iowa Counties versus United States

All Cancer Sites

All Races, Female

Sorted by priority index

Explanation of Column Headers

State/County - The site and sex combination for this comparison.

Priority Index 1 - The priority index is based upon the direction of the trend and the rate comparison. An index of 1 is the highest priority - that trend is rising and the rate is already higher. An index of 9 is the lowest priority - the trend is falling and the rate is already lower.

Recent Trends - This is an interpretation of the AAPC:

AAPC (95% Confidence Interval) - The Average Annual Percent Change is the change in rate over time. These AAPCs are based upon APCs that were calculated by Joinpoint Regression Program


Other Notes


Line by Line Interpretation of the Report


United States


Iowa


Appanoose County


Mahaska County


Palo Alto County


Van Buren County


Wapello County


Woodbury County


Clinton County


Pottawattamie County


Adair County


Allamakee County


Audubon County


Boone County


Bremer County


Buena Vista County


Calhoun County


Carroll County


Cass County


Cherokee County


Chickasaw County


Clarke County


Clayton County


Davis County


Decatur County


Delaware County


Des Moines County


Dickinson County


Emmet County


Franklin County


Fremont County


Greene County


Grundy County


Guthrie County


Hancock County


Henry County


Howard County


Ida County


Jefferson County


Jones County


Keokuk County


Louisa County


Lucas County


Lyon County


Marion County


Mills County


Mitchell County


Monona County


Monroe County


Muscatine County


O'Brien County


Osceola County


Ringgold County


Sac County


Tama County


Warren County


Washington County


Wayne County


Winnebago County


Wright County


Taylor County


Benton County


Black Hawk County


Buchanan County


Butler County


Cedar County


Cerro Gordo County


Crawford County


Dubuque County


Fayette County


Floyd County


Hamilton County


Hardin County


Harrison County


Humboldt County


Iowa County


Jackson County


Jasper County


Kossuth County


Lee County


Linn County


Madison County


Marshall County


Montgomery County


Page County


Plymouth County


Pocahontas County


Polk County


Poweshiek County


Scott County


Story County


Union County


Webster County


Worth County


Clay County


Dallas County


Johnson County


Shelby County


Sioux County


Winneshiek County


Adams County

Notes:
Created by statecancerprofiles.cancer.gov on 07/04/2025 1:14 am.

Trend2
     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.
Rate Comparison
     Above     when 95% confident the rate is above and Rate Ratio3 > 1.10
     Similar     when unable to conclude above or below with confidence.
     Below     when 95% confident the rate is below and Rate Ratio3 < 0.90

* Data has been suppressed to ensure confidentiality and stability of rate and trend estimates.
1 Priority indices were created by ordering from rates that are rising and above the comparison rate to rates that are falling and below the comparison rate.
2 Recent trend in death rates is usually an Average Annual Percent Change (AAPC) based on the APCs calculated by Joinpoint Version 5.3.0. Due to data availability issues, the time period and/or calculation method used in the calculation of the trends may differ for selected geographic areas.
3 Rate ratio is the county rate divided by the US rate. Previous versions of this table used one-year rates for states and five-year rates for counties. As of June 2018, only five-year rates are used.
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 are age-adjusted to the 2000 US standard population (19 age groups: <1, 1-4, 5-9, ... , 80-84, 85+). The Healthy People 2020 goals are based on rates adjusted using different methods but the differences should be minimal. Population counts for denominators are based on Census populations as modified by NCI. The US Population Data File is used with mortality data.
Note: When the population size for a denominator is small, the rates may be unstable. A rate is unstable when a small change in the numerator (e.g., only one or two additional cases) has a dramatic effect on the calculated rate. Suppression is used to avoid misinterpretation when rates are unstable.

State Cancer Registries may provide more current or more local data. Data presented on the State Cancer Profiles Web Site may differ from statistics reported by the State Cancer Registries (for more information).

Data for the following has been suppressed to ensure confidentiality and stability of rate and trend estimates:
Adams County


Interpret Rankings provides insight into interpreting cancer statistics. When the population size for a denominator is small, the rates may be unstable. A rate is unstable when a small change in the numerator (e.g., only one or two additional cases) has a dramatic effect on the calculated rate.

Data for United States does not include Puerto Rico.