Alcohol use disorders after bariatric surgery: a study using linked health claims and survey data.

Background: Previous studies have repeatedly reported alcohol use disorders (AUDs) in patients after bariatric surgery (BS). This research field can benefit from studies combining health claims data with survey data.

Methods: Based on a combined retrospective cohort and cross-sectional study, 2151 patients with BS identified in a large health claims database received a questionnaire, by which we assessed the presence of AUDs based on a validated instrument (AUDIT) as well as by ICD-10 codes from the health claims data.

Quality of life in bariatric patients up to twelve years after surgery - Results from a nationwide retrospective cohort study.

Background: Bariatric interventions (BI, including surgical interventions) are effective in patients with massive obesity, i.e., a body mass index (BMI) > 40, and their number has steadily increased during the past decade.