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From 1998 to 2004, the total number of bariatric surgeries increased nine-fold, from 13,386 to 121,055.
Across all age groups, the fastest growth in bariatric surgeries occurred among adults aged 55 to 64, a twenty- fold increase, from 772 surgeries in 1998 to nearly 16,000 surgeries in 2004.
The national inpatient death rate associated with bariatric surgery declined 78.7 percent, from 0.89 percent in 1998 to 0.19 percent in 2004. In 2004, 230 patients died in hospital stays during which bariatric surgery was performed.
In 2004, the inpatient death rate for men was 2.8 times higher than the rate among women, down from six times higher in 1998.
Total national inpatient hospital costs for bariatric surgeries increased by more than eight times, from $147 million in 1998 to $1.26 billion in 2004 (in 2004 dollars).
The national average cost for a hospital stay during which bariatric surgery was performed decreased by 5.2 percent from 1998 to 2004 (in 2004 dollars).
Total costs for the privately insured were 8.9 times higher in 2004 than in 1998the largest increase among any group. The second largest increase was for uninsured patients, for whom total costs increased 8.6 times (in 2004 dollars).
An increasing number of adolescents (1217 years old) are receiving bariatric surgery, an estimated 349 in 2004.
Women accounted for 82.0 percent of all bariatric surgeries in 2004. Outcomes in 1998 and 2004 Yafu Zhao, M.S. and William Encinosa, Ph.D. Introduction �
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