title: The improvement of quality of life in patients treated with bariatric surgery in Korea.
abstract: OBJECTIVE
  Bariatric surgery is considered an efficient treatment for severe obesity, but postoperative complications and psychosocial problems may impact quality of life (QoL). Although QoL is an important aspect of bariatric surgery, few studies have evaluated the changes in QoL. We examined whether severely obese patients who had undergone bariatric surgery had better QoL compared with severely obese adults who had not undergone bariatric surgery in Korea.
  
  
  METHODS
  Data were obtained from 78 participants in two groups; bariatric surgery group (n = 53) and nonsurgery group (n = 25). EuroQoL-5D (EQ-5D), the impact of weight on quality of life-lite (IWQoL-lite) and the obesity-related psychosocial problem scale (OP-scale) were used to assess the improvement of QoL.
  
  
  RESULTS
  A total of 78 patients completed the QoL forms as part of their surgical consultation. In the EQ-5D, the changes of EQ-5D 3 level and EQ-5D visual analogue scale in the surgery group was 0.174 and 24.6 versus 0.017 and 17.8 in the nonsurgery group (P = 0.197 and P = 0.179). The changes of IWQoL-lite and OP-scale were significantly improved after bariatric surgery. In the IWQoL-lite, the mean changes in the surgery group was 33.4 versus 14.3 points in the nonsurgery group (P = 0.000). In the OP-scale, the mean changes in the surgery group patients scored 39.3 versus 9.0 points in the nonsurgery group (P = 0.000).
  
  
  CONCLUSIONS
  We demonstrated significant improvement of QoL observed after bariatric surgery compared to nonsurgical procedure. The results of this comparative study favor bariatric surgery for the treatment of severe obesity.
authors.affiliation: National Evidence-Based Healthcare Collaborating Agency, Seoul, Korea.
authors.forename: Sung-Hee
authors.initials: SH
authors.lastname: Oh
authors.forename: Hyun Jin
authors.initials: HJ
authors.lastname: Song
authors.forename: Jin-Won
authors.initials: JW
authors.lastname: Kwon
authors.forename: Do-Joong
authors.initials: DJ
authors.lastname: Park
authors.forename: Yeon-Ji
authors.initials: YJ
authors.lastname: Lee
authors.forename: Hyejin
authors.initials: H
authors.lastname: Chun
authors.forename: Sunyoung
authors.initials: S
authors.lastname: Kim
authors.forename: Kyung-Won
authors.initials: KW
authors.lastname: Shim
keywords: Bariatric surgery; Obesity; Quality of life