This study performs a systematic review of economic evaluation and cost of illness studies in Korea setting to examine the cost estimation methodologies. Focus group interviews were conducted on Korean junior researchers in health care to find out the classification and calculation of costs that the researchers have used. We then identified the key issues and suggested cost estimation methods for each subcategory.

The study perspectives are the payer's perspective, health care perspective, and societal perspective. The categories for costs were matched to each study perspectives. The categories for costs were divided into medical costs, non-medical costs, and productivity costs.