Surgeon crossover between pediatric and adult centers is associated with decreased rate of loss to follow-up among adolescent renal transplantation recipients.

The risk of adverse outcomes for pediatric renal transplant patients is highest during the transition from pediatric to adult care. While there have been many studies focus on graft failure and death, loss to follow-up likely plays a large role in patient outcomes. We hypothesize patients are lost to follow-up during this transition period and that patients transplanted at pediatric centers with a closely affiliated adult center (AFFs) are less likely to suffer from fragmentation of care and become lost to follow-up. AFFs were defined as those pediatric centers whose transplant surgeons were also on staff at an adult center and were identified using center websites. We included patients undergoing renal transplantation at <=18 years of age and had data for the entire transition period on the Scientific Registry of Transplant Recipients (n = 6,762, 92.3% in 95 AFFs). 32% of patients were lost to follow-up. On regression, patients transplanted at AFF were 33% less likely to be lost to follow-up compared with those from non-AFF (OR 0.67 CI 0.54-0.82, P < 0.01). The proportion of patients lost to follow-up during the transition period is remarkably high, but lower among recipients transplanted at AFFs. Poor follow-up may be mitigated by improving integration of care.