Bariatric Surgery Does Not Reduce Healthcare Costs Associated With Obesity

A new study has found that bariatric surgery does not reduce healthcare costs even though it does manage to reduce the obesity rates.

A new study conducted by researchers at Johns Hopkins Bloomberg School of Public Health and published in JAMA-Surgery found that bariatric surgery does not reduce healthcare costs even though it does manage to reduce the obesity rates.

"The results of our study are important because they demonstrate bariatric surgery does not lower overall health care costs in the long term and we found is no evidence that any one type of surgery is more likely to reduce long-term health care costs," said Jonathan Weiner, DrPH, professor of Health Policy and Management at the Bloomberg School and lead author of the study. He added, "Future studies should focus on the potential benefit of improved health and well-being of patients undergoing the procedure rather than on cost savings."

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Weiner and colleagues analyzed claims data for over 29,000 Blue Cross/Blue Shield plan members from across the nation who underwent bariatric surgery between January 2002 and December 2008. A one to one matched comparison group who did not undergo surgery, but who had diagnoses closely associated with obesity was also identified. The health care costs of these two groups were closely followed over a 7 year period. This study is the largest and longest duration of its type to date.

The research indicated total costs were greater in the bariatric surgery group vs. the non-surgery group during the second and third years following surgery, but were similar in the later years. However the bariatric group's prescription and office-visit costs were lower and their inpatient costs were higher than those not getting the procedure. Persons undergoing laparoscopic surgery had lower costs in the first few years after the procedure than those getting non-laparoscopic surgery, but the reduction was not sustained.

"An estimated $168 billion a year or 16.5 percent of all U.S. health care expenditures is spent to treat obesity and obesity associated diseases. As the weight of Americans continue to increase, so too does the strain on our health care system," said Weiner. "Given this trend, and the ever increasing rate that bariatric surgery is being preformed, we felt it was important to measure the impact of health care costs associated with this type of surgery."

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"Impact of Bariatric Surgery on Health Care Costs of Obese Persons," appearing in both the online and print editions of JAMA-Surgery was written by Jonathan P. Weiner, DrPH; Suzanne M. Goodwin, PhD; Hsien-Yen Chang, PhD, MPH; Shari D. Bolen, MD, MPH; Thomas M. Richards, MSEE; Roger A. Johns, MD, MHS; Soyal R. Momin, MS, MBA; and Jeanne M. Clark, MD, MPH.