Cost-effectiveness of varicella and zoster vaccination in England&Wales: importance measures for correlated parameters
Author(s) -
Joke Bilcke,
AJ van Hoek,
Niel Hens,
Marc Aerts,
W. John Edmunds,
Philippe Beutels
Publication year - 2010
Publication title -
procedia - social and behavioral sciences
Language(s) - English
Resource type - Journals
ISSN - 1877-0428
DOI - 10.1016/j.sbspro.2010.05.142
Subject(s) - interdependence , measure (data warehouse) , transmission (telecommunications) , econometrics , statistics , vaccination , medicine , epidemiology , variance (accounting) , computer science , mathematics , virology , economics , data mining , telecommunications , accounting , political science , law
This study aims to explore irregular relationships between input and outcomes in cost-effectiveness analysis, accounting for interdependencies between many input parameters. We used a dynamic infectious disease transmission model investigating the cost-effectiveness of varicella and zoster vaccination as a case study. Incremental costs and effects were used separately as the outcomes of interest, rather than the ratio between these, and a single R2 was calculated for groups of interdependent input parameters. Partial R2 was obtained as measure for the marginal proportion of variance explained. The most important input parameters were related to zoster epidemiology and disease transmission. In case of linear relationships, R2 is an easy to obtain importance measure, also in the presence of interdependent input parameters
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