J Neurogastroenterol Motil.
2014 Apr;20(2):242-252.
Estimating the Burden of Irritable Bowel Syndrome: Analysis of a Nationwide Korean Database
- Affiliations
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- 1Department of Internal Medicine, Ewha Womans University School of Medicine, Seoul, Korea.
- 2National Evidence-based Healthcare Collaborating Agency, Seoul, Korea. choim@catholic.ac.kr
- 3College of Korean Medicine, Kyung Hee University, Seoul, Korea.
- 4School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do, Korea.
- 5Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.
Abstract
- BACKGROUND/AIMS
Management of irritable bowel syndrome (IBS) imposes a heavy economic burden. This study was to estimate the epidemiologic features of IBS and to report the IBS burden for the first time in the Korean population.
METHODS
A cross-sectional study was conducted using the National Health Insurance (NHI) system database, which covers the entire population of Korea. IBS was defined as diagnostic code -10 in adults with any outpatient clinic visits or hospitalization related to IBS. We excluded diseases that mimic IBS symptoms.
RESULTS
A total of 2.42 million (58.2% female) individuals were identified as patients with IBS, yielding an age- and gender-adjusted prevalence of 5.1% in males and 6.9% in females. The prevalence of IBS increased proportionally with age, with higher medical costs in middle-aged patients. Outpatient clinics were visited by 98.6% of IBS patients, and 1.9% were treated upon admission. Of these patients, 87.6% were given a prescription. Co-morbidities that commonly accompanied IBS included upper gastrointestinal (36.1%), respiratory (12.3%), musculoskeletal (8.0%) disease, somatoform (4.3%) and depression/anxiety disorders (3.1%). The NHI costs of IBS, which include the NHI covered cost and beneficiary copayment charges, were estimated to be 155 million USD, which accounts for 0.46% of the total NHI costs for the entire Korean population.
CONCLUSIONS
According to the Korean national claims database, about 6% of the Korean population seeks medical care for IBS at least once per year. This high prevalence places a large economic burden on the Korean healthcare system, accounting for 0.46% of overall national medical expenditure.
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