INS and obesity due to melanocortin 4 receptor deficiency: This is in keeping with the study by Moradi et al. [15] that showed, after carrying out a multivariable logistic regression model, patients who are younger, not on insulin therapy, lower FBG and HbAIc pre-op, had shorter duration of T2DM pre-op, and do not have a family history of obesity had significantly higher chances of diabetes remission at year one and year three after surgery (p < 0.05).