A systematic review of economic evaluations conducted on gender-transformative interventions aimed at preventing unintended pregnancy and promoting sexual health in adolescents.

AIMS

We synthesised the best-available evidence on economic evaluations of gender-transformative interventions that prevent unintended pregnancy and promote sexual-health in adolescents. We also assessed the methodological quality of the economic-evaluation studies and identified gaps in the economic-evaluation evidence.

DESIGN

A systematic review (SR) of economic evaluations reported using Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, 2020.

DATA SOURCES

We searched the following bibliographic databases for economic evaluations that met our selection criteria; PubMed, Cochrane, National Health Service EE database, SCOPUS, CINHAL, Web of Science and Paediatric EE Database. We also conducted a grey literature search. We included articles published from January 1, 1990 to December 31, 2021, in English, including adolescents aged 10-19. Two independent reviewers conducted the title and full-text screening.

DATA EXTRACTION AND SYNTHESIS

One reviewer conducted data extraction and quality assessment, which a second reviewer checked. We used the Consolidated Health Economic Evaluation Reporting Standards (CHEERS) statement and Consensus on Health Economic Criteria (CHEC) checklist to measure the reporting and methodological quality. Synthesis was done narratively and using summary tables.

RESULTS

Twenty-two studies were included, with 16 full and six partial economic evaluations. The quality of studies was moderate to high for most. The most reported outcomes were incremental cost-effectiveness ratio, costs per averted sexually transmitted infection, quality-adjusted life years saved per averted infection and costs per averted pregnancy. Most studies were cost-effective or cost-saving.

CONCLUSIONS

Most of the economic evaluations are cost-effective. There is a scarcity of available economic evaluations for most existing gender-transformative interventions, with most included studies originating from high-income countries (HICs). There is a need to develop guidance specific to economic evaluations of gender-transformative interventions.