FLORIDA VITAL STATISTICS ANNUAL REPORT 2013
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Infant mortality rate:
Deaths to individuals less than one year old per 1,000 live births.
Number of infant deaths x 1,000
Number of live births
Maternal mortality rate:
Number of deaths to women while pregnant or within 42 days of termination of
pregnancy, irrespective of the duration and site of the pregnancy, from any cause related to or aggravated by the
pregnancy or its management, but not from accidental or incidental causes (ICD-10: A34, O00-O95, O98-O99)
per 100,000 live births.
Number of maternal deaths x 100,000
Number of live births
Natural increase:
The difference between the number of live births and the number of deaths.
Number of live births - number of deaths
Neonatal mortality rate:
Deaths to individuals less than 28 days old per 1,000 live births.
Number of deaths < 28 days x 1,000
Number of live births
Percent live births to unwed mothers:
Percent of unwed live births to the total number of live births.
Number of live births to unwed mothers x 100
Number of live births
Percent low birth weight:
Percent of live births weighing less than 2,500 grams to the total number of live
births.
Number of low weight live births x 100
Number of live births
Percent very low birth weight:
Percent of live births weighing less than 1,500 grams to the total number of live
births.
Number of very low weight live births x 100
Number of live births
Perinatal mortality rate:
Fetal deaths (20 weeks or more gestation) plus neonatal deaths (occurring in the first
27 days of life) per 1,000 live births plus fetal deaths.
Number of fetal deaths + number of neonatal deaths x 1,000
Number of fetal deaths + number of live births
Post-neonatal mortality rate:
Number of infant deaths of age 28 through 364 days per 1,000 live births.
Number of infant deaths aged 28 through 364 days x 1,000
Number of live births
Note:
Although totals may include persons whose age, race, gender, or resident county/city is unknown, the
process of "imputation" (using an algorithm to assign a known value to an unknown value) is not used to assign
age, race, gender, or resident county/city in calculating any rate, ratio, or percentage.
