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Special ArticleOpen Access
Defining Types of Economic Evaluation
Ngorsuraches S 
Objective: Recommend types of economic evaluation for Thai health technology assessment (HTA) guideline.
Material and method: Various types of economic evaluation, including their definitions and background
theories from research documentations were explored. In addition, the international economic evaluation
guidelines were reviewed. Finally, the recommendations for Thai HTA guideline were made.
Result: There are generally four types of economic evaluation: Cost-Benefit Analysis (CBA), Cost-Minimization
Analysis (CMA), Cost-Effectiveness Analysis (CEA), and Cost-Utility Analysis (CUA). Theories of welfare and
extra-welfare economics were used to explain each type of economic evaluation. From the international
guidelines, each country’s guideline has its own preferred types of economic evaluation. CEA and CUA were
more likely to be recommended in those guidelines.
Conclusion: For Thai HTA guideline, CUA was recommended to be a method of choice. However, CEA could
be used, especially when only intermediate outcomes of compared alternatives are available.
Keywords: Type, Economic evaluation, Method
Material and method: Various types of economic evaluation, including their definitions and background
theories from research documentations were explored. In addition, the international economic evaluation
guidelines were reviewed. Finally, the recommendations for Thai HTA guideline were made.
Result: There are generally four types of economic evaluation: Cost-Benefit Analysis (CBA), Cost-Minimization
Analysis (CMA), Cost-Effectiveness Analysis (CEA), and Cost-Utility Analysis (CUA). Theories of welfare and
extra-welfare economics were used to explain each type of economic evaluation. From the international
guidelines, each country’s guideline has its own preferred types of economic evaluation. CEA and CUA were
more likely to be recommended in those guidelines.
Conclusion: For Thai HTA guideline, CUA was recommended to be a method of choice. However, CEA could
be used, especially when only intermediate outcomes of compared alternatives are available.
Keywords: Type, Economic evaluation, Method
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