Trends and causes of maternal mortality in Indonesia: a systematic review

Background The maternal mortality ratio (MMR) in Indonesia is among the highest in Southeast Asia. We aim to describe trends in the MMR and causes of maternal deaths in Indonesia over the past decades, regionally and nationally. Methods We performed a systematic review and conducted a search using PubMed, Embase, Global Health, CINAHL, Cochrane, Portal Garuda, and Google Scholar from the inception of the database to April 2023. We included all studies on the incidence and/or the causes of maternal deaths in Indonesia. The MMR was defined as the number of maternal deaths per 100,000 live births. Maternal death causes were assessed and reclassified according to the WHO International Classification of Disease Maternal Mortality (ICD-MM). Results We included 63 studies that reported the MMR (54 studies) and/or the causes of maternal deaths (44 studies) in Indonesia from 1970 to 2022, with a total of 254,796 maternal deaths. The national MMR declined from 450 to 249 (45%) between 1990 and 2020. Great differences in MMR exist across the country, with the lowest in Java-Bali and the highest (more than twice the national MMR) in Sulawesi and Eastern Indonesia. Between 1990 and 2022, the proportion of deaths due to hemorrhage and sepsis decreased, respectively from 48 to 18% and 15-5%, while the share of deaths due to hypertensive disorders and non-obstetric causes increased, respectively from 8 to 19% and 10-49%. Conclusion Despite the steady decline of maternal deaths in Indonesia, it remains one of the highest in Southeast Asia, with enormous disparities within the country. Hypertensive disorders and non-communicable diseases make up a growing share of maternal deaths, making maternal death reduction strategies increasingly challenging. National Maternal Death Surveillance and Response needs to be prioritized to eliminate preventable maternal deaths in Indonesia.