• Erik Stenberg, Carina Persson, Erik Näslund, Johan Ottosson, Magnus Sundbom, Eva Szabo, and Ingmar Näslund.
• Department of Surgery, Faculty of Medicine and Health, Örebro University, Örebro, Sweden. Electronic address: erik.stenberg@regionorebrolan.se.
• Surg Obes Relat Dis. 2019 Apr 1; 15 (4): 575-581.

BackgroundSocioeconomic factors may influence the outcome of certain surgical procedures, but it is not known whether such factors influence the risk for postoperative complication after bariatric surgery.ObjectivesDetermining whether different socioeconomic factors influence the risk for postoperative complication after laparoscopic gastric bypass surgery.SettingNationwide in Sweden.MethodsRetrospective register-based cohort study that includes all primary laparoscopic gastric bypass procedures in Sweden between 2010 and 2016, using data from the Scandinavian Obesity Surgery Registry, Statistics Sweden, and the Swedish Population Register. Main outcome measures were occurrence and severity of early postoperative complications.ResultsIncluded in this study were 41,537 patients with 30-day follow-up percentage of 96.7%. Study groups with increased risk for postoperative complication (age, sex, body mass index, and co-morbidity adjusted-odds ratio with 95% confidence intervals) were as follows: being divorced, a widow, or a widower (1.14 [1.03-1.23]); receiving disability pension (1.37 [1.23-1.53]) or social assistance (1.22 [1.07-1.40]); and being first- (1.22 [1.04-1.44]) or second-generation (1.20 [1.09-1.32]) immigrant. In contrast, being single (.90 [.83-.99]), having higher disposable income (50th-80th percentile: .84 [.76-.93]; >80th percentile: .84 [.72-.98]), and living in a medium (.90 [.83-.98]) or small (.84 [.76-.92]) town were associated with lower risk. Increased risk for severe postoperative complication was seen for divorced, widowm, or widower (1.30 [1.12-1.52]) and those receiving disability pension (1.37 [1.16-1.61]) or social assistance (1.32 [1.08-1.62]), while higher disposable income (50th-80th percentile: .79 [.68-.92]; >80th percentile .57 [.46-.72]) was associated with lower risk.ConclusionSocioeconomic factors influence the risk for early postoperative complication after laparoscopic gastric bypass surgery. The impact is not enough to exclude patients from surgery, but they must be taken into account in preoperative risk assessment.Copyright © 2019 American Society for Bariatric Surgery. Published by Elsevier Inc. All rights reserved.

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