COUNTY The county variable tells the person's county of residence at diagnosis. If the county of residence was not known, it is reported as "Unknown." Only Oklahoma residents are included in the datasets. Queries may be conducted on all counties or selected counties.
(Map of Oklahoma Counties)

METROPOLITAN STATISTICAL AREAS (MSAs) The MSA variable tells the person's MSA of residence at diagnosis. MSA refers to geographical region with a high population density at its core and high degree of economic ties throughout the area.
(Map of Metropolitan and Micropolitan Statistical Areas)
The Centers for Medicare and Medicaid Services use these geographic designations for their programs. They are county based using Census Bureau metropolitan and micropolitan definitions.

Metropolitan and Microplitan definitions may be found at Metro/Micro Definitions.

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

REGION The region variable tells the person's region of residence at diagnosis.
(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

Case: A condition, such as chlamydia infection (i.e., an chlamydia case) or AIDS (i.e., an AIDS case), diagnosed according to a standard case definition.

Chlamydia Infection: Caused by the bacterium chlamydia trachomatis, is the most commonly reported, notifiable sexually transmitted infection (STI) in the United States and the most prevalent, reportable STI in Oklahoma.

Gonorrhea Infection: Caused by Neisseria gonorrhea, a bacterium that can grow and multiply in warm, moist areas of the reproductive tract, mouth, throat, eyes, and anus.

Primary and Secondary Syphilis: A genital, ulcerative sexually trans-mitted disease caused by the bacterium Treponema pallidum.

Mode of Transmission: No information is collected on the mode of transmission for cases of chlamydia and gonorrhea.

Race: A sociological designation, identifying a class sharing some outward physical characteristics and some commonalities of culture and history. In this document, race is categorized as White—Non Hispanic, Black—Non Hispanic, American Indian/Alaska Native—Non Hispanic, Asian/Pacific Islander—Non Hispanic, Multiple Races (Two or More Races)—Non Hispanic, Unknown—Non Hispanic, or Hispanic—All Races. All persons with Hispanic ethnicity, regardless of race, are categorized as Hispanic (e.g., If a person is reported as Black and Hispanic, they are analyzed as Hispanic).

For more information, please visit SHHRS