Infant death means the death of a live-born infant who has not yet completed 1 year of life.
Foetal death means the death prior to the complete expulsion or extraction from its mother of a product of conception, irrespective of the duration of pregnancy, the death being indicated by the fact that after such separation the foetus does not breathe or show any other evidence of life, such as beating of the heart, pulsation of the umbilical cord or definite movement of voluntary muscles.
Late foetal death means foetal deaths of 28 weeks or more of completed weeks of gestation.

Definitions:

'Death' means the permanent disappearance of all evidence of life at any time after life birth has taken place (postnatal cessation of vital functions without capability of resuscitation).

'Infant death' means the death of a live-born infant who has not yet completed 1 year of life.

'Foetal death' means the death prior to the complete expulsion or extraction from its mother of a product of conception, irrespective of the duration of pregnancy, the death being indicated by the fact that after such separation the foetus does not breathe or show any other evidence of life, such as beating of the heart, pulsation of the umbilical cord or definite movement of voluntary muscles.

'Late foetal death' means foetal deaths of 28 weeks or more of completed weeks of gestation.

'Stillbirth' means the expulsion or extraction from the mother of a dead foetus after the time at which it would normally be presumed capable of independent extra uterine existence (commonly taken to be after 24 or 28 weeks of gestation). Infants who are born alive but die shortly after birth are excluded from this category.

Crude deaths rate represents the ratio of the number of deaths during the year to the average population in that year. The value is expressed per 1000 inhabitants.

Infant mortality rate represents the ratio of the number of deaths of children under one year of age during the year to the number of live births in that year. The value is expressed per 1000 live births.

Early neonatal mortality rate represents the ratio of the number of deaths of children under one week during the year to the number of live births in that year. The value is expressed per 1000 live births.

Late foetal mortality rate represents the ratio of the number of still births during the year to the number of total births (live births + still births) in that year. The value is expressed per 1000 births.

Neonatal mortality rate represents the ratio of the number of deaths of children under 28 days during the year to the number of live births in that year. The value is expressed per 1000 live births

Perinatal mortality rate represents the ratio of the number of deaths of children under one week and the stillbirths during the year, to the number of births in that year (including stillbirths). The value is expressed per 1000 births.

Life expectancy at certain ages represents the mean number of years still to be lived by a person who has reached a certain exact age, if subjected throughout the rest of his or her life to the current mortality conditions (age-specific probabilities of dying).

Life table is one of the most important and most widely used devices in demography, summarizing various aspects of the variation of mortality with age and showing, for each age, the probability that a person of that age will die before their next birthday. One column of the table is "age" followed by columns that tabulate age-related functions pertaining to mortality: the numbers of survivors to various ages, deaths in particular age intervals, age specific death rates, probabilities of death in various age intervals, and life expectancy at given exact age.

The methodology for the calculation of Life table can be consulted in "Annex" at the bottom of the page.

Age concept:

Most National Statistical Institutes of the EU Member States provide data on deaths by both dimensions: age and year of birth. Two tables are compiled and disseminated based on the data collected: deaths by age at last birthday (also referred as age completed) and deaths by age reached during the year. The availability of data on deaths by the two age concepts among the countries starts at different moment of time series. Currently, all EU27 Member States provide data on deaths by the two concepts, with the exception of Ireland and Malta which measure mortality by age completed only.

Eurostat uses the concept of age completed for the calculation of the mortality indicators by age.