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Interpretation of Rate/Trend Comparison by Cancer Data

Death Rate/Trend Comparison by Cancer, 2015-2019

Virginia Counties versus United States

Liver & Bile Duct

All Races, Both Sexes

Sorted by priorityindex

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


Virginia


Newport News City


Norfolk City


Roanoke City


Chesterfield County


Hampton City


Portsmouth City


Richmond City


Virginia Beach City


Alexandria City


Bedford City and County


Chesapeake City


Frederick County


Henrico County


Suffolk City


Arlington County


Fairfax County


Roanoke County


Albemarle County Augusta County Botetourt County Campbell County Carroll County Culpeper County Danville City Fairfax City Fauquier County Fluvanna County Franklin County Giles County Gloucester County Goochland County Halifax County with South Boston City Hanover County Henry County Isle of Wight County James City County Loudoun County Lynchburg City Mecklenburg County Montgomery County Nelson County Page County Petersburg City Pittsylvania County Prince William County Rockingham County Salem City Shenandoah County Smyth County Spotsylvania County Stafford County Staunton City Tazewell County Warren County Washington County Waynesboro City Wise County Accomack County Alleghany County and Clifton Forge City Amelia County Amherst County Appomattox County Bath County Bland County Bristol City Brunswick County Buchanan County Buckingham County Buena Vista City Caroline County Charles City County Charlotte County Charlottesville City Clarke County Colonial Heights City Covington City Craig County Cumberland County Dickenson County Dinwiddie County Emporia City Essex County Falls Church City Floyd County Franklin City Fredericksburg City Galax City Grayson County Greene County Greensville County Harrisonburg City Highland County Hopewell City King George County King William County King and Queen County Lancaster County Lee County Lexington City Louisa County Lunenburg County Madison County Manassas City Manassas Park City Martinsville City Mathews County Middlesex County New Kent County Northampton County Northumberland County Norton City Nottoway County Orange County Patrick County Poquoson City Powhatan County Prince Edward County Prince George County Pulaski County Radford City Rappahannock County Richmond County Rockbridge County Russell County Scott County Southampton County Surry County Sussex County Westmoreland County Williamsburg City Winchester City Wythe County York County

Notes:
Created by statecancerprofiles.cancer.gov on 08/20/2022 1:30 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.
** Data are too sparse to provide stable estimates of annual rates needed to calculate trend.
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 4.8.0.0. 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 1969-2018 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:
Accomack County, Alleghany County and Clifton Forge City, Amelia County, Amherst County, Appomattox County, Bath County, Bland County, Bristol City, Brunswick County, Buchanan County, Buckingham County, Buena Vista City, Caroline County, Charles City County, Charlotte County, Charlottesville City, Clarke County, Colonial Heights City, Covington City, Craig County, Cumberland County, Dickenson County, Dinwiddie County, Emporia City, Essex County, Falls Church City, Floyd County, Franklin City, Fredericksburg City, Galax City, Grayson County, Greene County, Greensville County, Harrisonburg City, Highland County, Hopewell City, King George County, King William County, King and Queen County, Lancaster County, Lee County, Lexington City, Louisa County, Lunenburg County, Madison County, Manassas City, Manassas Park City, Martinsville City, Mathews County, Middlesex County, New Kent County, Northampton County, Northumberland County, Norton City, Nottoway County, Orange County, Patrick County, Poquoson City, Powhatan County, Prince Edward County, Prince George County, Pulaski County, Radford City, Rappahannock County, Richmond County, Rockbridge County, Russell County, Scott County, Southampton County, Surry County, Sussex County, Westmoreland County, Williamsburg City, Winchester City, Wythe County, York County

Trend for the following could not be reliably determined due to small number of deaths per year:
Albemarle County, Augusta County, Botetourt County, Campbell County, Carroll County, Culpeper County, Danville City, Fairfax City, Fauquier County, Fluvanna County, Franklin County, Giles County, Gloucester County, Goochland County, Halifax County with South Boston City, Hanover County, Henry County, Isle of Wight County, James City County, Loudoun County, Lynchburg City, Mecklenburg County, Montgomery County, Nelson County, Page County, Petersburg City, Pittsylvania County, Prince William County, Rockingham County, Salem City, Shenandoah County, Smyth County, Spotsylvania County, Stafford County, Staunton City, Tazewell County, Warren County, Washington County, Waynesboro City, Wise 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.