The average impact of bariatric surgery on quality of life corresponded to an effect size of 0.88 ( 95 % CI : 0.80 - 0.96 ) , indicating that bariatric surgery has a significant positive influence on quality of life in general .
The impact varied considerably across studies with bariatric surgery showing a significantly greater positive influence on physical quality of life compared to mental quality of life .
Bariatric surgery is effective in improving quality of life , especially when looking at physical well-being .
Greater focus on the psychological well-being of the person undergoing surgery for obesity may lead to a better post-surgery prognosis for more people
This study aims to review the obesity literature in order to assess the impact of bariatric surgery on quality of life and the between- study variation by examining the st and ardized mean magnitude of effect in change in the levels of quality of life .
Health benefits of gastric bypass surgery after 6 years.
CONTEXT Extreme obesity is associated with health and cardiovascular disease risks . Although gastric bypass surgery induces rapid weight loss and ameliorates many of these risks in the short term , long-term outcomes are uncertain . OBJECTIVE To examine the association of  Roux-en-Y gastric bypass ( RYGB ) surgery  with weight loss , diabetes mellitus , and other health risks 6 years after surgery . DESIGN , SETTING , AND PARTICIPANTS A prospect i ve Utah-based study conducted between July 2000 and June 2011 of 1156 severely obese ( body mass index [ BMI ] ≥ 35 ) participants aged 18 to 72 years ( 82 % women ; mean BMI , 45.9 ; 95 % CI , 31.2 - 60.6 ) who sought and received RYGB surgery ( n = 418 ) , sought but did not have surgery ( n = 417 ; control group 1 ) , or who were r and omly selected from a population -based sample not seeking weight loss surgery ( n = 321 ; control group 2 ) . MAIN OUTCOME MEASURES Weight loss , diabetes , hypertension , dyslipidemia , and health-related quality of life were compared between participants having RYGB surgery and control participants using propensity score adjustment . RESULTS Six years after surgery , patients who received RYGB surgery ( with 92.6 % follow-up ) lost 27.7 % ( 95 % CI , 26.6%-28.9 % ) of their initial body weight compared with 0.2 % ( 95 % CI , -1.1 % to 1.4 % ) gain in control group 1 and 0 % ( 95 % CI , -1.2 % to 1.2 % ) in control group 2 . Weight loss maintenance was superior in patients who received RYGB surgery , with 94 % ( 95 % CI , 92%-96 % ) and 76 % ( 95 % CI , 72%-81 % ) of patients receiving RYGB surgery maintaining at least 20 % weight loss 2 and 6 years after surgery , respectively . Diabetes remission rates 6 years after surgery were 62 % ( 95 % CI , 49%-75 % ) in the RYGB surgery group , 8 % ( 95 % CI , 0%-16 % ) in control group 1 , and 6 % ( 95 % CI , 0%-13 % ) in control group 2 , with remission odds ratios ( ORs ) of 16.5 ( 95 % CI , 4.7 - 57.6 ; P < .001 ) vs control group 1 and 21.5 ( 95 % CI , 5.4 - 85.6 ; P < .001 ) vs control group 2 . The incidence of diabetes throughout the course of the study was reduced after RYGB surgery ( 2 % ; 95 % CI , 0%-4 % ; vs 17 % ; 95 % CI , 10%-24 % ; OR , 0.11 ; 95 % CI , 0.04 - 0.34 compared with control group 1 and 15 % ; 95 % CI , 9%-21 % ; OR , 0.21 ; 95 % CI , 0.06 - 0.67 compared with control group 2 ; both P < .001 ) . The numbers of participants with bariatric surgery-related hospitalizations were 33 ( 7.9 % ) , 13 ( 3.9 % ) , and 6 ( 2.0 % ) for the RYGB surgery group and 2 control groups , respectively . CONCLUSION Among severely obese patients , compared with nonsurgical control patients , the use of RYGB surgery was associated with higher rates of diabetes remission and lower risk of cardiovascular and other health outcomes over 6 years
The average impact of bariatric surgery on quality of life corresponded to an effect size of 0.88 ( 95 % CI : 0.80 - 0.96 ) , indicating that bariatric surgery has a significant positive influence on quality of life in general .
The impact varied considerably across studies with bariatric surgery showing a significantly greater positive influence on physical quality of life compared to mental quality of life .
Bariatric surgery is effective in improving quality of life , especially when looking at physical well-being .
Greater focus on the psychological well-being of the person undergoing surgery for obesity may lead to a better post-surgery prognosis for more people
This study aims to review the obesity literature in order to assess the impact of bariatric surgery on quality of life and the between- study variation by examining the st and ardized mean magnitude of effect in change in the levels of quality of life .