Janet Ng1, Richard Seip2, Andrea Stone1, Gualberto Ruano2, Darren Tishler1, Pavlos Papasavas3. 1. Division of Metabolic and Bariatric Surgery, Hartford Hospital, Hartford, Connecticut. 2. Genetic Research Center, Hartford Hospital, Hartford, Connecticut. 3. Division of Metabolic and Bariatric Surgery, Hartford Hospital, Hartford, Connecticut. Electronic address: pavlos.papasavas@hhchealth.org.
Abstract
BACKGROUND: Demographic factors such as ethnicity may affect bariatric surgery outcomes. We examined weight loss and co-morbidities outcomes in African American, Caucasian, and Hispanic patients who underwent laparoscopic gastric banding (LAGB) and Roux-en-Y gastric bypass (RYGB). The primary aim was to investigate demographic differences in weight loss and co-morbidities outcomes. METHODS: We retrospectively examined weight change and co-morbidities outcomes in our prospective database. A total of 1,903 patients underwent LAGB or RYGB between January 1, 2005 and March 31, 2012. Of those, 1828 completed their 1-year follow-up visit (9-15 mo) and had complete data. We excluded patients who were missing ethnicity information, resulting in a final cohort of 1,684 patients. Multivariate analyses and χ2 tests were used to examine demographic variables in body mass index (BMI) change, percent excess weight loss (%EWL), and remission of co-morbidities. We also examined weight loss outcomes at 2- and 3-year follow-up. RESULTS: Overall, those who underwent RYGB had a lower BMI and greater %EWL at 1, 2, and 3 years compared to those who had undergone LAGB. Overall, African American patients had a higher postoperative BMI than either Caucasian or Hispanic patients. African American patients also showed less %EWL than Caucasian and Hispanic patients. When we examined within surgery type, ethnic differences between African American and Caucasian patients were present across all 3 years in RYGB, but there were no ethnic differences by year 3 in LAGB. Additionally, African American and Hispanic patients no longer differed by year 3 in RYGB and by year 2 in LAGB. There were no significant ethnic differences in remission of diabetes, hyperlipidemia, hypertension, and sleep apnea at 1 year. CONCLUSION: Our study found significant ethnic differences in the postoperative BMI and %EWL, which were more pronounced in patients undergoing RYGB than LAGB at the 3-year time point. These weight loss differences did not translate to a lower rate of co-morbidities remission.
BACKGROUND: Demographic factors such as ethnicity may affect bariatric surgery outcomes. We examined weight loss and co-morbidities outcomes in African American, Caucasian, and Hispanic patients who underwent laparoscopic gastric banding (LAGB) and Roux-en-Y gastric bypass (RYGB). The primary aim was to investigate demographic differences in weight loss and co-morbidities outcomes. METHODS: We retrospectively examined weight change and co-morbidities outcomes in our prospective database. A total of 1,903 patients underwent LAGB or RYGB between January 1, 2005 and March 31, 2012. Of those, 1828 completed their 1-year follow-up visit (9-15 mo) and had complete data. We excluded patients who were missing ethnicity information, resulting in a final cohort of 1,684 patients. Multivariate analyses and χ2 tests were used to examine demographic variables in body mass index (BMI) change, percent excess weight loss (%EWL), and remission of co-morbidities. We also examined weight loss outcomes at 2- and 3-year follow-up. RESULTS: Overall, those who underwent RYGB had a lower BMI and greater %EWL at 1, 2, and 3 years compared to those who had undergone LAGB. Overall, African American patients had a higher postoperative BMI than either Caucasian or Hispanic patients. African American patients also showed less %EWL than Caucasian and Hispanic patients. When we examined within surgery type, ethnic differences between African American and Caucasian patients were present across all 3 years in RYGB, but there were no ethnic differences by year 3 in LAGB. Additionally, African American and Hispanic patients no longer differed by year 3 in RYGB and by year 2 in LAGB. There were no significant ethnic differences in remission of diabetes, hyperlipidemia, hypertension, and sleep apnea at 1 year. CONCLUSION: Our study found significant ethnic differences in the postoperative BMI and %EWL, which were more pronounced in patients undergoing RYGB than LAGB at the 3-year time point. These weight loss differences did not translate to a lower rate of co-morbidities remission.
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