Product Search Search Effective Health Care website Submit search Search Tip: Use double quotes around phrases to rank exact matches higher in the result list. 4 results Change Score or Followup Score? An Empirical Evaluation of the Impact of Choice of Mean Difference Estimates White Paper April 20, 2015 Data Points #17: Trends in bariatric surgery in Medicare beneficiaries Research Report Archived November 30, 2012 Health Outcomes of Bariatric Surgery in Individuals with Type 2 Diabetes Research Report November 29, 2012 Prompt Reduction in Use of Medications for Comorbid Conditions After Bariatric Surgery Research Report Archived July 30, 2010