This metric represents the number of fetal deaths and early neonatal deaths per 1,000 live births and stillbirths. It encompasses losses occurring from 22 completed weeks of gestation (or a fetal weight of 500 g if gestational age is unknown) through the first seven days of life. For example, a rate of 10 indicates that for every 1,000 births (live and stillborn), 10 fetuses or infants died within this critical period.
Accurate measurement of this indicator is vital for assessing the quality of prenatal and neonatal care within a population. It serves as a sensitive measure of maternal health services, obstetric practices, and newborn care interventions. Historically, improvements in this rate have reflected advancements in medical technology, public health initiatives, and socioeconomic development. Understanding its contributing factors allows for targeted interventions to improve outcomes for mothers and infants.