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Weight-loss Surgeries Quadrupled in Five Years

Weight Loss Surgery

The number of Americans having weight-loss surgery more than quadrupled between 1998 and 2002 - from 13,386 to 71,733 -with part of the increase driven by a 900 percent rise in operations on patients between the ages of 55 and 64, according to a new study by HHS' Agency for Healthcare Research and Quality. The study is being published in the July 12 issue of Health Affairs.

During the same period, hospital costs for treating patients who underwent weight-loss surgery increased by more than six times - from $157 million a year to $948 million a year - and the average cost per surgery increased by roughly 13 percent, from $11,705 to $13,215.

To be considered medically eligible for weight-loss surgery, known technically as bariatric surgery, a patient must have a Body Mass Index greater than 40 (or greater than 35 with serious obesity-related complications such as type 2 diabetes or obstructive sleep apnea). Approximately 395,000 Americans between 65 and 69 years of age will be medically eligible to have weight-loss surgery this year, and this number could increase by approximately 20 percent, to 475,000, in 2010, which would have important cost implications for the Medicare program, according to the study authors.

The authors estimate that future demand for weight-loss surgery could rise even more sharply as safety concerns diminish. To date, only a small fraction of people who are medically eligible for weight-loss surgery have actually had the procedure; in 2002, for example, only 0.6 percent of an estimated 11.5 million morbidly obese patients underwent weight-loss surgery. Meanwhile, in-hospital death rates among weight-loss surgery patients as a whole fell by 64 percent - from 0.89 percent to 0.32 percent between 1998 and 2002. In spite of the overall decline, the death rate for men, which dropped from 2.76 percent to 0.79 percent, was still three times higher than the 0.24 death rate for women.

"This study clearly shows another side of the challenge that America's obesity epidemic poses to the Nation's health care system. In the absence of more effective means of preventing obesity, the demand for surgery and its costs will continue to increase," said AHRQ Director Carolyn M. Clancy, M.D. "These findings provide valuable national estimates for the present and future for Medicare, Medicaid and private health plans."

The authors further suggest that future use and costs of prescription weight-loss drugs also could increase significantly. While 63 million Americans were medically eligible for weight-loss drugs in 2002, less than 2.4 percent were prescribed them. The average spending on weight-loss drugs that year was $304 per patient, with health plans paying roughly three-fourths of the expense and patients paying the balance.

According to lead study author William E. Encinosa, Ph.D., newer, more effective drugs now under development to block cravings or appetite will likely increase the demand for prescription weight-loss medications.

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