New-onset diabetes after transplantation among renal transplant recipients at a new transplant center; King Fahad Specialist Hospital-Dammam, Saudi Arabia.

New-onset diabetes after transplant (NODAT) has been reported to occur in 4%-25% of renal transplant recipients. Its development has also been shown to be associated with an adverse impact on patient survival and an increased risk of graft rejection and graft loss, as well as an increased incidence of infectious complications. The study aims to describe the incidence of NODAT and its important risk factors in a single center. We conducted a retrospective analysis of data from all kidney transplant recipients in our center, transplanted between September 2008 and May 2013. Out of 311 patients, 77 had diabetes mellitus (DM) before transplantation and were excluded, leaving 234 patients as the study population. NODAT was diagnosed based on the WHO definition for DM: any two readings of fasting blood sugar >7 mmol/L or random blood sugar >11 or the use of hypoglycemic medications after 1 posttransplant month. The mean age of the study patients was 36 years ± 14 years; 55.5% were male, 69% had living-related transplant, 31% had deceased donor transplant, 98% were on tacrolimus-based immunosuppression regimen, 2% on cyclosporine and all patients were on the steroid-based regimen. The 1 and 5-year cumulative incidence of NODAT was 14.1% and 27.5%, respectively. The median duration to onset of NODAT was 2.5 months. The body mass index of >30 kg/m and age >60 years at the time of transplant were significantly associated with the occurrence of NODAT. Our finding of incidence was not different from what has been reported in the literature. Larger prospective and multicenter studies are needed.