Adolescent maternal health services utilization and associated barriers in Sub-Saharan Africa: A comprehensive systematic review and meta-analysis before and during the sustainable development goals

Introduction: Effective and adequate maternal health service utilization is critical for improving maternal and newborn health, reducing maternal and perinatal mortality, and important to achieve global sustainable development goals (SDGs). The purpose of this systematic review was to assess adolescent maternal health service utilization and its barriers before and during SDG era in Sub-Saharan Africa (SSA). Methods: Systematic review of published articles, sourced from multiple electronic databases such as Medline, PubMed, Scopus, Embase, CINAHL, PsycINFO, Web of Science, African Journal Online (AJOL) and Google Scholar were conducted up to January 2024. Assessment of risk of bias in the individual studies were undertaken using the Johanna Briggs Institute (JBI) quality assessment tool. The maternal health service utilization of adolescent women was compared before and after adoption of SDGs. Barriers of maternal health service utilization was synthesized using Andersen's health-seeking model. Meta-analysis was carried out using the STATA version 17 software. Results: Thirty-eight studies from 15 SSA countries were included in the review. Before adoption of SDGs, 38.2 % (95 % CI: 28.5 %, 47.9 %) adolescents utilized full antenatal care (ANC) and 44.9 % (95%CI: 26.2, 63.6 %) were attended by skilled birth attendants (SBA). During SDGs, 42.6 % (95 % CI: 32.4 %, 52.8 %) of adolescents utilized full ANC and 53.0 % (95 % CI: 40.6 %, 65.5 %) were attended by SBAs. Furthermore, this review found that adolescent women's utilization of maternal health services is influenced by various barriers, including predisposing, enabling, need, and contextual factors. Conclusions: There was a modest rise in the utilization of ANC services and SBA from the pre-SDG era to the SDG era. However, the level of maternal health service utilization by adolescent women remains low, with significant disparities across SSA regions and multiple barriers to access services. These findings indicate the importance of developing context-specific interventions that target adolescent women to achieve SDG3 by the year 2030.