Weight Gain Related Factors in Renal Transplantation Dr. Fatemeh Nazemian, Dr. Masih Nagibi Previous studies of renal transplant recipient have suggested that weight gain after transplantation is relatively common. We conducted a prospective study of 100 renal transplant recipients from 2000 to 2002 at Imam-Reza hospital to identify pattern of weight change attributed to sex, age at transplantation, socio-economic class, pretransplantation time on dialysis, incidence of diabetes, incidence of hypercholesteromia and incidence of hypertriglyceridemia. Descriptive study was also made on FBS, cholestrol and triglyceride level in serum of renal transplant recipient six months after transplantation. Patients weight was evaluated at 3, 6, 9 and 12 months after transplantation. Univariate analysis at 1 year showed that women had greater weight gains than men (p=0.003), older recipient had greater weight gains than younger recipient (p=0.009), weight gain was correlated with increase in triglyceride and cholestrol level of serum (p=0.000, P=0.004), socio-economical class was not correlated with weight changes (p=0.955). In conclusion, in multivariate analysis female sex, older age, increasing incidence of hypercholesterolemia and hypertriglyceridemia were significantly associated with weight gain one year after transplantation.