A Sensitivity Analysis Framework for Health Economic Evaluation in Middle Income Countries: Appropriately Incorporating a Comprehensive Approach

dc.contributor.advisorCunnama, Lucy
dc.contributor.advisorWilkinson, Tommy
dc.contributor.authorSoboil, Joshua
dc.date.accessioned2022-03-16T02:56:11Z
dc.date.available2022-03-16T02:56:11Z
dc.date.issued2021
dc.date.updated2022-03-16T02:07:33Z
dc.description.abstractWhen constructing a health economic decision model, it is critical to select a sensitivity analysis approach appropriate for the decision context. This point is particularly salient to Middle-Income Countries (MICs), where there is relatively heightened resource scarcity and increased opportunity-cost. MICs face acute shortages of accessible as well as highquality evidence, resulting in a frequent imputing of data from external jurisdictions. Conversely, there are also shortages in skills and research capacity, creating a strong complementary need to consider the contextual feasibility of applying more resource demanding sensitivity analysis methodologies. Given the above, it is therefore critical to establish whether and when the technical benefits of complex and resource demanding methods result in real-world value. We apply a comparative case study using a comprehensive approach to decision-modelling, implemented in the R and JAGS languages. Specifically, the case study replicates a deterministic model originally used to inform the cost-effectiveness of adding a bivalent Human Papilloma Virus (HPV) vaccine to South Africa's public health care cervical cancer screening programme. Crucially, the case study provides critical insight into the pros and cons of implementing more complex sensitivity analysis techniques within MIC climates. Our findings indicate that the benefits of more advanced sensitivity analysis methods are nuanced; are therefore contextually beneficial according to a case-by-case basis; and, moreover, choosing a sensitivity analysis method should be guided by a conceptual ‘fruitfulness' (i.e. a bang-for-buck), more than a mere desire to reduce model complexity. To aid analysts in this process, from our comparative case study we provide a framework with three core concept areas namely Decision-Maker Preferences (Decision Power, Investment, Risk Aversion), Analytical Considerations (Available resources, Indirect Evidence) and Policy Context (Knowledge of Topic, Technical Expertise). The framework intends to encourage more judicious selection of sensitivity analysis methods; help reduce the methodological variation apparent in MIC settings; and simultaneously provide decision-makers with greater methodological transparency in the selection of sensitivity analysis methods.
dc.identifier.apacitationSoboil, J. (2021). <i>A Sensitivity Analysis Framework for Health Economic Evaluation in Middle Income Countries: Appropriately Incorporating a Comprehensive Approach</i>. (). ,Faculty of Health Sciences ,Department of Public Health and Family Medicine. Retrieved from http://hdl.handle.net/11427/36127en_ZA
dc.identifier.chicagocitationSoboil, Joshua. <i>"A Sensitivity Analysis Framework for Health Economic Evaluation in Middle Income Countries: Appropriately Incorporating a Comprehensive Approach."</i> ., ,Faculty of Health Sciences ,Department of Public Health and Family Medicine, 2021. http://hdl.handle.net/11427/36127en_ZA
dc.identifier.citationSoboil, J. 2021. A Sensitivity Analysis Framework for Health Economic Evaluation in Middle Income Countries: Appropriately Incorporating a Comprehensive Approach. . ,Faculty of Health Sciences ,Department of Public Health and Family Medicine. http://hdl.handle.net/11427/36127en_ZA
dc.identifier.ris TY - Master Thesis AU - Soboil, Joshua AB - When constructing a health economic decision model, it is critical to select a sensitivity analysis approach appropriate for the decision context. This point is particularly salient to Middle-Income Countries (MICs), where there is relatively heightened resource scarcity and increased opportunity-cost. MICs face acute shortages of accessible as well as highquality evidence, resulting in a frequent imputing of data from external jurisdictions. Conversely, there are also shortages in skills and research capacity, creating a strong complementary need to consider the contextual feasibility of applying more resource demanding sensitivity analysis methodologies. Given the above, it is therefore critical to establish whether and when the technical benefits of complex and resource demanding methods result in real-world value. We apply a comparative case study using a comprehensive approach to decision-modelling, implemented in the R and JAGS languages. Specifically, the case study replicates a deterministic model originally used to inform the cost-effectiveness of adding a bivalent Human Papilloma Virus (HPV) vaccine to South Africa's public health care cervical cancer screening programme. Crucially, the case study provides critical insight into the pros and cons of implementing more complex sensitivity analysis techniques within MIC climates. Our findings indicate that the benefits of more advanced sensitivity analysis methods are nuanced; are therefore contextually beneficial according to a case-by-case basis; and, moreover, choosing a sensitivity analysis method should be guided by a conceptual ‘fruitfulness' (i.e. a bang-for-buck), more than a mere desire to reduce model complexity. To aid analysts in this process, from our comparative case study we provide a framework with three core concept areas namely Decision-Maker Preferences (Decision Power, Investment, Risk Aversion), Analytical Considerations (Available resources, Indirect Evidence) and Policy Context (Knowledge of Topic, Technical Expertise). The framework intends to encourage more judicious selection of sensitivity analysis methods; help reduce the methodological variation apparent in MIC settings; and simultaneously provide decision-makers with greater methodological transparency in the selection of sensitivity analysis methods. DA - 2021_ DB - OpenUCT DP - University of Cape Town KW - Health Economics LK - https://open.uct.ac.za PY - 2021 T1 - A Sensitivity Analysis Framework for Health Economic Evaluation in Middle Income Countries: Appropriately Incorporating a Comprehensive Approach TI - A Sensitivity Analysis Framework for Health Economic Evaluation in Middle Income Countries: Appropriately Incorporating a Comprehensive Approach UR - http://hdl.handle.net/11427/36127 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/36127
dc.identifier.vancouvercitationSoboil J. A Sensitivity Analysis Framework for Health Economic Evaluation in Middle Income Countries: Appropriately Incorporating a Comprehensive Approach. []. ,Faculty of Health Sciences ,Department of Public Health and Family Medicine, 2021 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/36127en_ZA
dc.language.rfc3066eng
dc.publisher.departmentDepartment of Public Health and Family Medicine
dc.publisher.facultyFaculty of Health Sciences
dc.subjectHealth Economics
dc.titleA Sensitivity Analysis Framework for Health Economic Evaluation in Middle Income Countries: Appropriately Incorporating a Comprehensive Approach
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationlevelMPH
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