• Indian J Med Res · Sep 2022

    Review

    Economic evaluation of hepatitis A vaccines by income level of the country: A systematic review.

    • Yogesh Kirshnarao Gurav, Bhavani Shankara Bagepally, Ammarin Thakkinstian, Usa Chaikledkaew, and Montarat Thavorncharoensap.
    • Health Technology Assessment Group, ICMR-National Institute of Virology, Pune, Maharashtra; Mahidol University Health Technology Assessment Graduate Program, Bangkok, Thailand.
    • Indian J Med Res. 2022 Sep 1; 156 (3): 388410388-410.

    Background & ObjectivesAlthough several reviews of economic evaluation (EE) studies on hepatitis A virus (HAV) vaccine exist, there remains a need to corroborate such data from time to time. This study aimed to systematically review the literature for reports on EE of HAV vaccination by type of population, characteristics of intervention and income level of the country.MethodsPubMed and Scopus were searched to identify relevant studies from inception up to May 2021 using topic-specific key words in various combinaiton. Full EE studies comparing HAV vaccination to no vaccine or immunoglobulin were included. The risk of bias was assessed by using the ECOBIAS checklist.ResultsAmong the 1984 identified studies, 43 were found eligible. Of these, 27 were from high-income countries (HICs), 15 from middle-income countries (MICs), and one from low income country. Majority of the studies used Markov model and/or decision tree (n=26). Eight studies used a dynamic model. The discount rate, perspective and time horizon varied across the studies. Universal HAV vaccination without screening was cost-effective among children (14/16, 87.5%) and adolescents (1/5, 20%) but not in adults (0/4, 0%). Analysis by the level of income found that universal HAV vaccination among children without screening was cost-effective in 81.8 per cent of the studies conducted in MICs (9/11) as compared to 66.7 per cent in HICs (4/6). About one-third of the studies conducted among children found that screening and HAV vaccination were cost-effective compared to no vaccination.Interpretation & ConclusionsThe finding of this review suggest that universal vaccination of children without screening was likely to be cost-effective, especially in MICs. Nevertheless, it should be noted that the methodology varied across studies. Several aspects should also be considered in transferring the EE results across jurisdictions.

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