The Economic Burden of Otitis Media in Korea, 2012: A Nationally Representative Cross-Sectional Study

Table 1

Classification and data sources for costs.

Classification	Services included in category	Data source
Direct cost
Direct medical costs	Outpatient medical cost	NHIS claims data between 2012.1.1 and 2012.12.31.
	Inpatient medical cost	NHIS claims data between 2012.1.1 and 2012.12.31.
	Uninsured medical cost (out of pocket cost)	Using a ratio for noninsured medical cost per total medical cost surveyed at NHIS
	Pharmaceuticals cost	Using a ratio for pharmaceuticals cost per total medical cost published at NHIS and HIRA 2012 National Health Insurance Statistical Yearbook
Direct nonmedical costs	Transportation cost	Korea Health Panel Data surveyed at NHIS and KIHASA
	Caregiver’s cost	() Using a ratio of paid caregiver of Korea Health Panel data surveyed at NHIS and KIHASA; () Using a cost for paid caregiver’s average cost announced at The Korean Patient Helper Society
Indirect cost
Productivity loss	Due to work loss	2012 Survey Report on Labor Conditions by Employment Type surveyed at Ministry of Employment and Labor
	Due to premature death	Statistics Korea Data in 2012

NHIS: national health insurance service; KIHASA: Korea institute for health and social affairs; HIRA: health insurance review and assessment service.