Epidemiology

Question 1

Stillbirth

Answer 1

A fetus born with no signs of life that is issued from its mother after 20 weeks gestation or weighing more than 400g if gestation unknown (births, deaths, marriages registration act 1995)
- at or after 28 weeks- WHO
- after 24 weeks- RCOG

Question 2

Perinatal mortality

Answer 2

Fetal and early neonatal death from 20 weeks (or weighing at least 400g if gestation unknown) until midnight of the sixth day of life

Question 3

Perinatal mortality rate

Answer 3

Perinatal mortality per 1000 live births/ stillbirths

Question 4

Early neonatal death

Answer 4

Death that occurs up until midnight of the sixth day of life

Question 5

Late neonatal death

Answer 5

Death that occurs between the seventh day and midnight of the 27th day of life

Question 6

Infant mortality

Answer 6

Death of a baby between 28 days and 1 year of age

Question 7

Maternal morbidity

Answer 7

Any health condition attributed to and/ or aggravated by pregnancy and childbirth that has a negative impact on the woman’s wellbeing

Question 8

Maternal mortality

Answer 8

The death of a women while pregnant or within 42 days of termination of pregnancy, irrespective of the duration and site of the pregnancy, from any cause related to or aggravated by the pregnancy or its management but not from accidental causes (WHO)
- direct causes- resulting from pregnancy- related condition
- indirect- resulting from previous existing disease or disease that developed during pregnancy and which was not due to direct obstetric causes, but which was aggravated by physiologic effects of pregnancy

Question 9

Maternal mortality ratio

Answer 9

WHO- MMR is the number of maternal deaths per 100 000 LIVE BIRTHS over a specified period of time

NZ- MMR is the number of maternal deaths per 100 000 MATERNITIES over a specified period of time