Cumulative incidence of relapsing to BMI > 30 kg/m2 by time among patients who had previously achieved BMI < 30 kg/m2. Incidence is displayed as the time difference between these two milestones. 35.7% of patients who reached BMI < 30 kg/m2 maintained this for the duration of the study. Patients who remitted back to BMI < 30 kg/m2 are not taken into account in this figure. Data availability at 1–7 years was 157, 145, 144, 134, 123, 82, and 29 patients respectively out of 219 total patients.