Enrique F Elli1, Raquel Gonzalez-Heredia2, Neil Patel1, Mario Masrur1, Melissa Murphey1, Jinsong Chen1, Lisa Sanchez-Johnsen1. 1. Division of General, Minimally Invasive and Robotic Surgery, University of Illinois at Chicago College of Medicine, Chicago, IL. 2. Division of General, Minimally Invasive and Robotic Surgery, University of Illinois at Chicago College of Medicine, Chicago, IL. Electronic address: rgheredi@uic.edu.
Abstract
BACKGROUND: The primary aim of this study was to examine percent excess weight loss (%EWL) across and between racial groups at 6, 12, 24, and 36 months follow-up in patients who received sleeve gastrectomy (SG) or a Roux-en-Y gastric bypass (RYGB) operation. We hypothesized that ethnic minorities (blacks and Hispanics) would have a lower %EWL than whites at 6, 12, 24, and 36 months for both SG and RYGB operations. The secondary aim was to examine %EWL within racial groups at 6, 12, 24, and 36 months as a function of the type of bariatric operation. We hypothesized that whites, blacks, and Hispanics would have a greater %EWL with RYGB than with SG. METHODS: A total of 749 patients who underwent an SG or an RYGB operation from January 2008 to June 2014 were included. Data were collected from patients' electronic medical records. Self-reported data on race/ethnicity were also obtained from the electronic medical record and were classified into the following categories: white, Hispanic/Latino, African American or black, or other. RESULTS: Results revealed overall differences in %EWL between blacks and whites (P < .05) and no overall differences in %EWL between Hispanics and whites (P = .697). Follow-up analyses revealed that Hispanics differed from blacks in %EWL at 6, 12, 24, and 36 months (all P < .01) and that whites differed from blacks at 6 months (P < .05). There were no significant differences between whites and Hispanics during any follow-up period. Overall, the %EWL differed by operation type (P < .01), with RYGB associated with greater %EWL than SG. When stratified by race, the only difference was found in blacks, who had a greater %EWL after RYGB compared with SG (P < .01). CONCLUSION: Our primary hypothesis was partially supported, as blacks but not Hispanics had a lower %EWL compared to whites at 6 months. An interesting finding is that blacks had a lower %EWL than Hispanics at every time point. Moreover, our secondary hypothesis was partially supported. Results revealed that overall RYGB was related to greater %EWL compared with SG, and within racial groups, among blacks only, RYGB was associated with a greater %EWL compared with SG. Published by Elsevier Inc.
BACKGROUND: The primary aim of this study was to examine percent excess weight loss (%EWL) across and between racial groups at 6, 12, 24, and 36 months follow-up in patients who received sleeve gastrectomy (SG) or a Roux-en-Y gastric bypass (RYGB) operation. We hypothesized that ethnic minorities (blacks and Hispanics) would have a lower %EWL than whites at 6, 12, 24, and 36 months for both SG and RYGB operations. The secondary aim was to examine %EWL within racial groups at 6, 12, 24, and 36 months as a function of the type of bariatric operation. We hypothesized that whites, blacks, and Hispanics would have a greater %EWL with RYGB than with SG. METHODS: A total of 749 patients who underwent an SG or an RYGB operation from January 2008 to June 2014 were included. Data were collected from patients' electronic medical records. Self-reported data on race/ethnicity were also obtained from the electronic medical record and were classified into the following categories: white, Hispanic/Latino, African American or black, or other. RESULTS: Results revealed overall differences in %EWL between blacks and whites (P < .05) and no overall differences in %EWL between Hispanics and whites (P = .697). Follow-up analyses revealed that Hispanics differed from blacks in %EWL at 6, 12, 24, and 36 months (all P < .01) and that whites differed from blacks at 6 months (P < .05). There were no significant differences between whites and Hispanics during any follow-up period. Overall, the %EWL differed by operation type (P < .01), with RYGB associated with greater %EWL than SG. When stratified by race, the only difference was found in blacks, who had a greater %EWL after RYGB compared with SG (P < .01). CONCLUSION: Our primary hypothesis was partially supported, as blacks but not Hispanics had a lower %EWL compared to whites at 6 months. An interesting finding is that blacks had a lower %EWL than Hispanics at every time point. Moreover, our secondary hypothesis was partially supported. Results revealed that overall RYGB was related to greater %EWL compared with SG, and within racial groups, among blacks only, RYGB was associated with a greater %EWL compared with SG. Published by Elsevier Inc.
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