Cancer: Oklahoma Residents.
County: The county of residence at the time of the cancer diagnosis (Map of Oklahoma Counties)
Time Span : The years during which the event occurred (cancer date) 
    For Cancer Incidence: All Race/Ethnic specific rates are calculated using population estimates from the National Center for Health Statistics with bridged racial categories and released by the National Cancer Institutes SEER program. Beginning with the 2021 data, primary sites were assigned using the Site Recode ICD-O-3/WHO 2008 Definition (including the use of behavior codes) to align with CDC/NPCR and SEER reporting standards.  
    For Cancer Mortality: The National Center for Health Statistics has discontinued the postcensal bridged-race population estimates (used for calculating rates) with the release of the Vintage 2020 estimates. Starting with 2021 birth and death statistics and cancer and injury mortality, OK2SHARE will display the racial categories used by the U.S. Census Bureau - White, Black, American Indian, Asian, Native Hawaiian and Pacific Islander, and Two or more races. Hispanic Origin did not change. There will also be 2010 to 2020 trends using the new race categories along with the existing bridged race categories.

County: (Map of Oklahoma Counties)

Regions: (Map of Regions)

Region Counties
Central Cleveland, Oklahoma
Northeast Adair, Cherokee, Craig, Creek, Delaware, Kay, Lincoln, Mayes, Muskogee, Noble, Nowata, Okfuskee, Okmulgee, Osage, Ottawa, Pawnee, Payne, Rogers, Sequoyah, Wagoner, Washington
Northwest Alfalfa, Beaver, Blaine, Canadian, Cimarron, Custer, Dewey, Ellis, Garfield, Grant, Harper, Kingfisher, Logan, Major, Roger Mills, Texas, Woods, Woodward
Southeast Atoka, Bryan, Choctaw, Coal, Haskell, Hughes, Johnston, Latimer, LeFlore, Marshall, McCurtain, McIntosh, Murray, Pittsburg, Pontotoc, Pottawatomie, Pushmataha, Seminole
Southwest Beckham, Caddo, Carter, Comanche, Cotton, Garvin, Grady, Greer, Harmon, Jackson, Jefferson, Kiowa, Love, McClain, Stephens, Tillman, Washita
Tulsa Tulsa

Sub-state Planning District: (Map of Sub-state Planning District)
Planning District Name Counties
ACOG Association of Central Oklahoma Governments Canadian, Cleveland, Logan, Oklahoma
ASCOG Association of South Central Oklahoma Governments Caddo, Comanche, Cotton, Grady, Jefferson, McClain, Stephens, Tillman
COEDD Central Oklahoma Economic Development District Hughes, Lincoln, Okfuskee, Pawnee, Payne, Pottawatomie, Seminole
EODD Eastern Oklahoma Development District Adair, Cherokee, McIntosh, Muskogee, Okmulgee, Sequoyah, Wagoner
GGEDA Grand Gateway Economic Development District Association Craig, Delaware, Mayes, Nomata, Ottawa, Rogers, Washington
INCOG Indian Nations Council of Governments Creek, Osage, Tulsa
KEDDO Kiamichi Economic Development District of Oklahoma Choctaw, Haskell, Latimer, LeFlore, McCurtain, Pittsburg, Pushmataha
NODA Northern Oklahoma Development Association Alfalfa, Blaine, Garfield, Grant, Kay, Kingfisher, Major, Noble
OEDA Oklahoma Economic Development Association Beaver, Cimmarron, Dewey, Ellis, Harper, Texas, Woods, Woodward
SODA Southern Oklahoma Development Association Atoka, Bryan, Carter, Coal Garvin, Johnston, Move, Marshall, Murray, Pontotoc
SWODA South Western Oklahoma Development Authority Beckham, Custer, Greer, Harmon, Jackson, Kiowa, Roger Mills, Washita

IHS Oklahoma City Area Service Units (Map of IHS Service Units)

The Oklahoma City Area Indian Health Service consists of 12 Service Units.  Nine of these Service Units are located in the State of Oklahoma. A Service Unit is an administrative entity with the Indian Health Service. Each Service Unit in Oklahoma is comprised of multiple counties.

Service Unit Counties
Ada Bryan, Carter, Coal, Garvin, Johnston, Love, Marshall, McClain, Murray, Pontotoc
Claremore Craig, Creek, Delaware, Mayes, Nowata, Okfuskee, Okmulgee, Ottawa, Rogers, Tulsa, Wagoner, Washington
Clinton Alfalfa, Beaver, Beckham, Blaine, Canadian, Cimarron, Custer, Dewey, Ellis, Greer, Harper, Kingfisher, Major, Roger Mills, Texas, Washita, Woods, Woodward
Lawton Caddo, Comanche, Cotton, Grady, Harmon, Jackson, Jefferson, Kiowa, Stephens, Tillman
Pawnee Garfield, Grant, Kay, Noble, Osage, Pawnee, Payne
Shawnee Cleveland, Lincoln, Logan, Oklahoma, Pottawatomie
Tahlequah Adair, Cherokee, McIntosh, Muskogee, Sequoyah
Talihina Atoka, Choctaw, Haskell, Latimer, LeFlore, McCurtain, Pittsburg, Pushmataha
Wewoka Hughes, Seminole

SEER Site Groups for Primary Site and Mortality Data (table definition links):

    SEER Site Groups for Primary Site Based on ICD-O-3

    SEER Site Groups for Mortality Data Based on ICD-10


Cancer Incidence Rate = 100,000 x Number of Resident with Cancer  /  Resident Population     

Age Adjusted Rates:
            US 2000 Standard Population =  
       Age Specific Mortality Rate  x Population within that age group / US 2000 Population

***when calculating the rate for combined years the population is the sum of the populations for the specified time span***