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Gastroenterology Research and PracticeVolume 2013 2013, Article ID 216957, 7 pages

Clinical Study

Cheng Hsin General Hospital, Pai-Tou, Taipei 112, Taiwan

The First Affiliated Hospital of Wenzhou Medical College, Zhejiang, Wenzhou 325000, China

Faculty of Medicine, School of Medicine, National Yang-Ming University, Pai-Tou, Taipei 112, Taiwan

Faculty of Public Health, School of Medicine, Fu-Jen Catholic University, Xinzhuang, Taipei 24205, Taiwan

Received 24 May 2013; Accepted 12 August 2013

Academic Editor: Spiros D. Ladas

Copyright © 2013 Chung-Te Hsu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Purpose. The utility evaluation was an effective method to incorporate all of the contributing variables for multiple diseases into one outcome measure. A cross-sectional study was conducted to assess the utility values associated with varying states of gallstone disease among outpatient clinics participants at a teaching hospital in Taipei, Taiwan. Methods. The utility values were measured by using time trade-off method. A total of 120 outpatient clinics participants 30 subjects with no gallstone disease, 30 subjects with single stone, 30 subjects with multiple stones, and 30 subjects with cholecystectomy evaluated utility values from January 1, 2006 to December 31, 2006. The diagnosis of gallstone disease was performed by a panel of specialists using ultrasound sonography. Results. The overall mean utility value was 95% CI: 0.87–0.91 indicating that study participants were willing to trade about 11% 95% CI: 9–13% of their remaining life in return for being free of gallstone disease perpetually. The significant associated factors of utility values based on the multiple linear regression analysis were older age and different degrees of gallstone disease. Conclusion. Our results found that in addition to older age, multiple stones and cholecystectomy could influence utility values from the patient’s preference-based viewpoint.

Author: Chung-Te Hsu, Yi Liao, Jorn-Hon Liu, and Tao-Hsin Tung



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