Short- and Long-Term Outcomes after Bariatric Surgery in the Medicare Population
Project Summary Title and Description
- Short- and Long-Term Outcomes after Bariatric Surgery in the Medicare Population
- We conducted a technology assessment to summarize and appraise the current evidence regarding the effectiveness and safety of bariatric surgery in the Medicare-eligible population.
- Authors of Report
- Methodology description
- We searched six bibliographic databases and the reference lists of published clinical practice guidelines, relevant narrative and systematic reviews, and scientific information packages from manufacturers and other stakeholders on the outcomes and prediction models of different bariatric procedures studied in the Medicare-eligible population.
- Data was entered into this project prospectively, i.e. entering data into SRDR concurrent with the data abstraction task. The Technology Assessment report is available here: https://www.ahrq.gov/sites/default/files/wysiwyg/research/findings/ta/bariatric-surgery/bariatric-surgery-medicare-final-report.pdf
- Funding Source
- 1. KQ 1: What are the theorized mechanisms of action of bariatric procedures on weight loss and type 2 diabetes in the Medicare population?
- 2. KQ 2: In studies that are applicable to the Medicare population and enroll patients who have undergone bariatric therapy, what are a) the characteristics and indications of patients receiving bariatric therapy including descriptives of age, BMI, and comorbid conditions b) the characteristics of the interventions, including the bariatric procedures themselves as well as pre- and/or postsurgical surgical work-ups (e.g., psychiatric evaluations, behavioral and nutritional counseling) c) the outcomes that have been measured, including peri-operative (i.e., 90 days or less after bariatric surgery), short-term (2 years or less from surgery), mid-term (more than 2 but 5 or less years), and long-term (more than 5 years after surgery) outcomes?
- 3. KQ3: a) In Medicare-eligible patients, what are the effects of different bariatric therapies (contrasted between them or vs. nonbariatric therapies) on weight outcomes (including failure to achieve at least minimal weight loss)? b) What patient- (KQ2a) and intervention- (KQ2b) level characteristics modify the effect of bariatric therapies on weight outcomes (including failure to achieve at least minimal weight loss)? c) In Medicare-eligible patients who have undergone bariatric therapy, what is the frequency and the predictors of failing to achieve at least minimal weight loss? d) In Medicare eligible patients who do not achieve weight loss after primary bariatric treatment, what is the effect of revisional bariatric therapies (contrasted between them or vs. nonbariatric therapies) on weight outcomes?
- 4. KQ4: a) In Medicare-eligible patients, what is the comparative effectiveness of different bariatric therapies (contrasted between them or vs. nonbariatric interventions) with respect to the non-weight-loss outcomes in KQ2c and what is the comparative safety of these therapies? b) What patient- (KQ2a) and intervention- (KQ2b) level characteristics modify the effects of the bariatric therapies on the outcomes other than weight loss in KQ2c?
- 5. KQ5: a) In Medicare-eligible patients who have undergone bariatric therapy, what is the association between weight outcomes and eligible short- and long-term outcomes (other than weight outcomes)? b) In Medicare-eligible patients, what proportion of the bariatric treatment effect on eligible short- and long-term outcomes (other than weight outcomes) is accounted for by changes in weight outcomes?
Associated Extraction Forms
Associated Studies (each link opens a new tab)
Downloadable Data Content
- XLSX Project Data