• Surg Obes Relat Dis · Aug 2017

    Cost of bariatric surgery and factors associated with increased cost: an analysis of national inpatient sample.

    • Zhamak Khorgami, Ali Aminian, Saeed Shoar, Amin Andalib, Alan A Saber, Philip R Schauer, Stacy A Brethauer, and Guido M Sclabas.
    • Department of Surgery, University of Oklahoma, College of Medicine, Tulsa, Oklahoma. Electronic address: Zhamak-khorgami@ouhsc.edu.
    • Surg Obes Relat Dis. 2017 Aug 1; 13 (8): 1284-1289.

    BackgroundIn the current healthcare environment, bariatric surgery centers need to be cost-effective while maintaining quality.ObjectiveThe aim of this study was to evaluate national cost of bariatric surgery to identify the factors associated with a higher cost.SettingA retrospective analysis of 2012-2013 Healthcare Cost and Utilization Project - Nationwide Inpatient Sample (HCUP-NIS).MethodWe included all patients with a diagnosis of morbid obesity (ICD9 278.01) and a Diagnosis Related Group code related to procedures for obesity, who underwent Roux-en-Y gastric bypass (RYGB), sleeve gastrectomy (SG), or adjustable gastric banding (AGB) as their primary procedure. We converted "hospital charges" to "cost," using hospital specific cost-to-charge ratio. Inflation was adjusted using the annual consumer price index. Increased cost was defined as the top 20th percentile of the expenditure and its associated factors were analyzed using the logistic regression multivariate analysis.ResultsA total of 45,219 patients (20,966 RYGBs, 22,380 SGs, and 1,873 AGBs) were included. The median (interquartile range) calculated costs for RYGB, SG, and AGB were $12,543 ($9,970-$15,857), $10,531 ($8,248-$13,527), and $9,219 ($7,545-$12,106), respectively (P<.001). Robotic-assisted procedures had the highest impact on the cost (odds ratio 3.6, 95% confidence interval 3.2-4). Hospital cost of RYGB and SG increased linearly with the length of hospital stay and almost doubled after 7 days. Furthermore, multivariate analysis showed that certain co-morbidities and concurrent procedures were associated with an increased cost.ConclusionFactors contributing to the cost variation of bariatric procedures include co-morbidities, robotic platform, complexity of surgery, and hospital length of stay.Copyright © 2017 American Society for Bariatric Surgery. Published by Elsevier Inc. All rights reserved.

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