Risk of emergency department visit or unplanned hospitalization for individual categories of cardiovascular disease before and after bariatric surgery in 3 months of interval. Proportion of patients with an ED visit or unplanned hospitalization for (A) coronary artery disease, (B) heart failure, (C) hypertension, (D) dysrhythmia, and (E) venous thromboembolism, with the 95% CIs for the 2 years before and after bariatric surgery in 3 months of intervals (n = 11 106). The periods were centred on the date of bariatric surgery of each patient. CI, confidence interval; ED, emergency department.