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Infant
An individual less than one year of age.
External cause of death
Death caused by accidents and adverse effects
Infant death
Death of an individual less than one year of age. Infant deaths are further classified as neonatal deaths and postneonatal deaths.
Childbearing years
The reproductive age span of women; conventionally defined as 15 through 44 years of age for the U.S. population.
Plurality
Classification of the number of children born of one pregnancy. Designated as single, twin, triplet, quadruplet.
General fertility rate (GFR)
The number of live births per 1,000 women age 15-44 years in a given year.
Live birth
The complete expulsion or extraction from its mother of a product of conception, regardless of the duration of the pregnancy, which after expulsion shows any vital signs (heart beat, voluntary breathing, umbilical cord pulsation, or voluntary muscle movem
Birth weight
The weight of an infant at delivery, recorded in pounds and ounces or in grams.
Perinatal
Period from 20 weeks gestation through 27 days after birth.
Very low birth weight
A birth weight less than 1500 grams, or less than 3 pounds, 5 ounces.
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