Records Filed Late: Include records filed after the official file has been closed.
Time Span-Birth: Births that occurred within the timespan selected, with deaths that occurred within 365 days.
Time Span-Death: Infant deaths that occurred within the timespan selected.
Entire State-Birth: Birth records that indicated Oklahoma as the state of residence.
Entire State-Death: Infant death records that indicated Oklahoma as the state of residence.
Counties-Birth: Birth records that indicated a county in Oklahoma as the county of residence. (map of state)
Counties-Death: Infant death records that indicated a county in Oklahoma as the county of residence. (map of state)

Live birth: An infant with signs of life at birth.
Childs Weight:
    Very low: A live birth weighing less than 1,500 grams (3 lb. 5 oz. or less).
    Low: A live birth weighing less than 2,500 grams (5 lb. 8 oz. or less).
    Normal: A live birth weighing between 2,500 and 3,999 grams (5 lb. 9 oz. - 8 lb. 13 oz.).
    High: A live birth weighing 4,000 grams or more (8 lb. 14 oz. or more).
Race: Race of infant as indicated on the death certificate.

Mother's Race:
    Other: Includes Japanese, Hawaiian, Other non-white, Filipino, and other Asian

Marital Status:
    Not married: Never married, divorced, or widowed at the time of the infant's birth
    Married: At the time of the infant's birth

Mother's Education:
Low education is considered to be less than 12 grades of school completed
    0-8 years: No education to less than some high school completed
    9-12 years: At least some high school completed
    12 years: High school graduate, G.E.D., or some other equivalent
    13-15 years: Some college
    >= 16 years: At least a college graduate

Prenatal Care: Time prenatal care began (first, second, third trimester or none)

Adequacy of Care :
    Adequate: 1st trimester and 10+ visits
    Intermediate: 1st or 2nd trimester and 4-9 visits
    Little: 1st or 2nd trimester and 1-3 visits
    Late: 3rd trimester Prenatal Care
    No: No Prenatal Care visits
    Poor: Late or no Prenatal Care

Plurality: Number of infants delivered at that time

Previous Live Births:
  High parity:
    Teens - Under 20 years of age with 2 or more previous births
    Adults - Ages 20 and over with 4 or more previous births

Cause of Death:
    ICD: International Classification of Diseases, ninth and tenth revisions  

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Other Commonly Used Terms

  Infant Death: A live birth dying before completing one year of life
  Neonatal death: A live birth dying before 28 days of life
  Post-neonatal death: A live birth dying between 29 days and one year of life
  Fetal death (still birth): Fetus 20 weeks or more gestation, born dead
  Perinatal death: Combined fetal and neonatal deaths

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Calculations:

Infant Mortality Rate = 1,000 x Number of Resident Infant Deaths  /     Number of Resident Live Births

Percent of Infant Deaths=

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