The cost-effectiveness of trivalent and quadrivalent influenza vaccination in communities in South Africa, Vietnam and Australia

Pieter T de Boer, Joel K Kelso, Nilimesh Halder, Thi-Phuong-Lan Nguyen, Jocelyn Moyes, Cheryl Cohen, Ian G Barr, Maarten J Postma, George J Milne

OnderzoeksoutputAcademicpeer review

17 Citaten (Scopus)
283 Downloads (Pure)

Samenvatting

BACKGROUND: To inform national healthcare authorities whether quadrivalent influenza vaccines (QIVs) provide better value for money than trivalent influenza vaccines (TIVs), we assessed the cost-effectiveness of TIV and QIV in low-and-middle income communities based in South Africa and Vietnam and contrasted these findings with those from a high-income community in Australia.

METHODS: Individual based dynamic simulation models were interfaced with a health economic analysis model to estimate the cost-effectiveness of vaccinating 15% of the population with QIV or TIV in each community over the period 2003-2013. Vaccination was prioritized for HIV-infected individuals, before elderly aged 65+ years and young children. Country or region-specific data on influenza-strain circulation, clinical outcomes and costs were obtained from published sources. The societal perspective was used and outcomes were expressed in International$ (I$) per quality-adjusted life-year (QALY) gained.

RESULTS: When compared with TIV, we found that QIV would provide a greater reduction in influenza-related morbidity in communities in South Africa and Vietnam as compared with Australia. The incremental cost-effectiveness ratio of QIV versus TIV was estimated at I$4183/QALY in South Africa, I$1505/QALY in Vietnam and I$80,966/QALY in Australia.

CONCLUSIONS: The cost-effectiveness of QIV varied between communities due to differences in influenza epidemiology, comorbidities, and unit costs. Whether TIV or QIV is the most cost-effective alternative heavily depends on influenza B burden among subpopulations targeted forvaccination in addition to country-specific willingness-to-pay thresholds and budgetary impact.

Originele taal-2English
Pagina's (van-tot)997-1007
Aantal pagina's11
TijdschriftVaccine
Volume36
Nummer van het tijdschrift7
Vroegere onlinedatum17-jan-2018
DOI's
StatusPublished - 8-feb-2018

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