MBRRACE-UK perinatal mortality surveillance: UK perinatal deaths of babies born in 2022

Summary

This is the tenth MBRRACE-UK Perinatal Mortality Surveillance Report. The report is divided into five sections: perinatal mortality rates in the UK; mortality rates for Trusts and Health Boards; mortality rates by gestational age; mortality rates by ethnicity and socio-economic deprivation; and a description of the causes of perinatal death.

This report focuses on births from 24 completed weeks’ gestational age, with the exception of the section on mortality rates by gestational age, which also includes information on births at 22 to 23 completed weeks’ gestational age. This avoids the influence of the wide disparity in the classification of babies born before 24 completed weeks’ gestational age as a neonatal death or a late fetal loss. Terminations of pregnancy have been excluded from the mortality rates reported.

Additional supporting materials to accompany this report include:

• a set of reference tables
• a data viewer with interactive mapping, which presents mortality rates for individual organisations, including Trusts and Health Boards
• a technical manual containing full details of the MBRRACE-UK methodology, including definitions, case ascertainment and statistical methods.