Infant mortality rate
The rate at which infants up to one year of age die. The rate is calculated by taking the number of children who died at less than 12 months of age and dividing it by the number of live births. The usual time period for calculation is a calendar year. The infant mortality rate in the U. S. is declining and was 0.76% in 1995 (in other words about 7-8 children die of every 1000 who are born alive).