Introduction Socioeconomic inequalities in neonatal mortality are observed globally but gaps remain in the evidence from current reviews, specifically: a wider range of socioeconomic indicators at the individual, household and area level than previous reviews, and alternative time frames to define neonatal mortality. Thus, a comprehensive updated review of the literature is required, focusing on multiple measures of socioeconomic status and alternative time frames, to assess the relationship between maternal socioeconomic status and neonatal mortality in high-income countries.
Methods and analysis Three different search approaches will be used: electronic searching of three databases, grey literature searching and reference list checking. First, the three databases Medline, Scopus and Web of Science will be searched using relevant synonyms and adapted terms from medical subject heading terms (MeSH) in Medline for maternal socioeconomic status and neonatal mortality identified from previous systematic reviews on inequalities in adverse pregnancy outcomes.
Second, grey literature will be searched by entering the relevant terms into Google.
BMJ Open published a clinical update in Research Highlights on 01 Apr 2026.
The item focuses on Maternal socioeconomic status and neonatal mortality in OECD countries: a systematic review and meta-analysis protocol.
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