(De)coding perinatal deaths: applying the International Classification of Diseases to perinatal mortality to a perinatal e-registry from 16 hospitals in Benin, Malawi, Tanzania, and Uganda

Background: To reduce perinatal deaths, identification of their causes is paramount. ‘The WHO application of ICD-10 to deaths during the perinatal period’ (ICD-PM) was developed to improve the quality of perinatal death data. Objectives: To determine stillbirth and very early neonatal death rates across 16 hospitals in Benin, Malawi, Tanzania, and Uganda, examine causes of death and associated maternal conditions applying the ICD-PM, and assess how a clinical perinatal e-registry performed when applying the ICD-PM. Methods: We used cross-sectional data collected between 1st July 2021 and 29th February 2024 of babies weighing ≥1000 g or ≥28 weeks of gestational age, born to women aged 13–50 years in the participating hospitals. Results: After analyzing 143,105 births, the stillbirth rate was 36.9 per 1,000 births and very early neonatal death rate was 7.7 per 1,000 live births. Nine in ten antepartum stillbirths could not be assigned a cause of death. Among intrapartum stillbirths, the most common cause of death was ‘disorders of fetal growth’ and for very early neonatal death it was ‘complications of intrapartum events’. The e-registry provided information to report on 17 out of the 24 ICD-PM categories. Conclusions: Collecting high-quality clinical data through an e-registry allowed the identification of a cause of death for most intrapartum stillbirths and very early neonatal deaths. A specifically designed clinical questionnaire and simple diagnostic procedures could enable the application of the ICD-PM in settings with limited diagnostic resources and high mortality rates.