For international comparisons, perinatal moality rate is calculated as late fetal deaths (28 weeks gestation or more) plus early neonatal deaths (first week) in a year per: September 2011

Ans. B: 1,000 live bihs For international comparisons, the WHO committee on the prevention of Perinatal Moality and Morbidity recommend a more precise formulation: "Late foetal and early neonatal deaths weighing over 1000 gram at bih, expressed as a ratio per 1000 live bihs weighing over 1000 gram at bih" Perinatal moality (PNM)/ Perinatal death It refers to the death of a fetus or neonate and is the basis to calculate the perinatal moality rate. Variations in the precise definition of the perinatal moality exist specifically concerning the issue of inclusion or exclusion of early fetal and late neonatal fatalities. The World Health Organization defines perinatal moality as the "number of stillbihs and deaths in the first week of life per 1,000 live bihs", but other definitions have been used Fetal moality refers to stillbihs or fetal death. It encompasses any death of a fetus after 20 weeks of gestation or 500 gm. In some definitions of the PNM early fetal moality (week 20-27 gestation) is not included, and the PNM may only include late fetal death and neonatal death. Fetal death can also be divided into death prior to labor, antenatal (antepaum) death, and death during labor, intranatal (intrapaum) death Early neonatal moality refers to a death of a live-born baby within the first seven days of life, while late neonatal moality covers the time after 7 days until before 28 days. The sum of these two represents the neonatal moality. Some definitions of the PNM include only the early neonatal moality. Neonatal moality is affected by the quality of in-hospital care for the neonate. Neonatal moality and postneonatal moality (covering the remaining 11 months of the first year of life) are reflected in the Infant Moality Rate. The PNMR refers to the number of perinatal deaths per 1,000 total bihs. It is usually repoed on an annual basis. It is a major marker to assess the quality of health care delivery.