Definitions for "Neonatal mortality rate"
Keywords:  prb, births, death, infants, live
A ratio expressing the number of deaths among children from birth to (but not including) 28 days of age divided by the number of live births reported during the same time period. The neonatal mortality rate is usually expressed per 1,000 live births.
the death rate during the first 28 days of life
The number of deaths among infants 28 days old in a given year per 1000 live births in that year.