Table 1.

Overview of search key components

Summary of search terms	(“Maternal Death Surveillance and Response” or MDSR or “Maternal and Perinatal Death Surveillance and Response” or MPDSR). ((maternal death or perinatal death or neonatal death) adj22 (surveillance or response or review or reporting or audit)).
Concept component	All forms of maternal and perinatal surveillance, review and response systems, regardless of nomenclature. Systems that contain elements of identifying, reporting, reviewing maternal death (or along with perinatal death) and responding to the deaths. Limited to studies that examine the implementation of the system at national and subnational levels or across countries. Excludes studies exclusively dealing with perinatal surveillance and response systems and confidential enquiries into maternal deaths.3
Context component	Limited to studies published in English between 2010 and November 2022.