Categories of mortality
| Categories of mortality | |
| Perinatal mortality | All deaths in the first week after birth, including intrapartum-related stillbirths.26 27 |
| Intrapartum-related stillbirths | Birth of a fetus with an Apgar score of 0 by 1 and 5 min, with no signs of maceration and suspected dying during labour.10 24–27 29 |
| 1-day mortality | All deaths of live-born infants within 24 hours after birth.24–28 |
| 7-day mortality | All deaths of live-born infants within in the first week of life.26 28 29 |
| 7–28-day mortality | Late mortality, all deaths of live born infants between the first week and first month of life.28 |
| 28-day mortality | All deaths of live-born infants within in the first month of life.10 28 |