Residency · Residency · Medicine Pediatrics
Principles of Transition Medicine
Overview
Transition medicine refers to the purposeful, planned movement of adolescents and young adults with chronic physical and medical conditions from child-centered to adult-oriented health care systems. The Med-Peds physician is uniquely positioned to shepherd this process, having training in both systems.
Epidemiology and Significance
Approximately 750,000 youth with special health care needs turn 18 each year in the United States, and up to half of young adults with chronic conditions experience a gap in care during transition. The 18-to-26 age window represents a period of peak vulnerability for loss to follow-up. Poor transitions are associated with increased emergency department utilization, hospitalization, and disease complications. Mortality spikes in early adulthood are well-documented in sickle cell disease, congenital heart disease, and type 1 diabetes, underscoring the life-or-death stakes of getting transition right.
The Got Transition Six Core Elements Model
Core Element 1: Transition Policy
The first step is to develop and share a written transition policy with patients and families. The concept of transition should be introduced early, ideally between ages 12 and 14, even though the actual transfer of care will not occur for several more years. The policy should address the practice's approach to privacy and consent changes that accompany adolescence.
Core Element 2: Transition Tracking and Monitoring
Practices should use a registry or flow sheet to track transition progress. This means identifying all patients who are approaching transition age and documenting readiness assessments and completed transition steps along the way.
Core Element 3: Transition Readiness Assessment
Validated tools such as the TRAQ (Transition Readiness Assessment Questionnaire) or STARx should be used to evaluate self-management skills, disease knowledge, and health literacy. Executive function and psychosocial maturity also deserve assessment. Key readiness domains include medication management (knowing names, doses, and purpose), appointment scheduling and transportation, insurance navigation, understanding of one's condition and when to seek urgent care, and reproductive health knowledge relevant to the condition.
Core Element 4: Transition Planning
A comprehensive plan should address medical, psychosocial, and educational or vocational needs. The medical summary should be updated and made portable. Legal issues such as guardianship, supported decision-making, and power of attorney must be addressed. Planning for insurance continuity is critical, particularly around Medicaid eligibility changes and ACA coverage extending to age 26.
Core Element 5: Transfer of Care
A comprehensive transfer package should be sent to the adult provider, including the transition readiness assessment, medical summary, and emergency care plan. Warm handoffs, such as joint visits or phone introductions, improve outcomes. Overlap periods where both the pediatric and adult teams remain engaged can smooth the process considerably.
Core Element 6: Transfer Completion
The final step is confirming that the first adult visit has actually occurred. This requires follow-up with both the young adult and the receiving adult practice, and documentation of transfer completion in the registry.
Age-Based vs. Readiness-Based Transition
| Approach | Advantages | Disadvantages |
|---|---|---|
| Age-Based (18-21) | Administratively simple; clear expectations; avoids indefinite pediatric care | Does not account for developmental variation; may force unprepared patients into adult systems |
| Readiness-Based | Individualized; respects developmental variation | Subjective; may delay transition indefinitely; lacks clear benchmarks; risk of "failure to launch" |
| Hybrid (age range 18-25 with readiness assessment) | Sets boundaries while allowing flexibility; readiness guides timing within window | Requires a "hard stop" to prevent indefinite pediatric care |
Age-Based Approach
A fixed transition at age 18 to 21 is administratively simple, sets clear expectations, and avoids indefinite pediatric care. However, it does not account for developmental variation and may force unprepared patients into adult systems before they are ready.
Readiness-Based Approach
Under this model, transition occurs when the patient demonstrates sufficient self-management skills. This individualized approach respects developmental variation, but it is inherently subjective, may delay transition indefinitely, and lacks clear benchmarks. There is also a risk of "failure to launch" in pediatric systems that are reluctant to discharge patients.
Hybrid Approaches
The most practical strategy sets an age range, such as 18 to 25, within which transition should occur. Readiness assessments guide timing within that window, and a "hard stop" is established to prevent indefinite pediatric care.
Special Populations in Transition
Intellectual and Developmental Disabilities
Patients with intellectual and developmental disabilities may require guardianship or conservatorship discussions starting at age 17. Supported decision-making offers an alternative to full guardianship. SSI and Medicaid redetermination at age 18 and vocational planning through transition IEP services are additional considerations that require proactive coordination.
Mental Health Conditions
Pediatric mental health systems often end at age 18 or 21, while adult psychiatric services may operate under different treatment philosophies. The college years represent a critical gap period during which many young adults lose access to established mental health support.
Technology-Dependent Patients
Patients who rely on tracheostomies, ventilators, or feeding tubes require complex care coordination across the transition. Pediatric home nursing agencies may not serve adults, and durable medical equipment suppliers may differ between pediatric and adult systems.
Barriers to Successful Transition
Barriers operate at every level. At the provider level, attachment to patients, reluctance to discharge, and unfamiliarity with transition tools can impede the process. Patient-level barriers include lack of self-advocacy skills, health illiteracy, and mental health comorbidities. System-level barriers such as insurance gaps, a shortage of adult providers willing to accept complex patients, and poor communication between pediatric and adult systems are pervasive. At the family level, parental overprotection, difficulty "letting go," and cultural factors add further complexity.
Measuring Transition Outcomes
Success can be measured through several metrics: the rate of successful linkage to adult care within 6 to 12 months of transfer, emergency department utilization before and after transfer, disease-specific outcome measures (such as A1c for diabetes or rejection episodes for transplant), patient-reported experience measures, and loss-to-follow-up rates.
Evidence-Based Interventions
Structured transition programs reduce gaps in care, as demonstrated in a 2016 Cochrane review. Transition coordinators improve outcomes in several disease-specific studies. Patient portals and mobile health apps support the development of self-management skills, and peer mentoring programs from young adults who have successfully transitioned provide relatable support.
<image>A flowchart diagram illustrating the Got Transition Six Core Elements model, showing the progression from transition policy introduction at age 12-14, through readiness assessment, transition planning, transfer of care, and transfer completion. Each element is shown as a connected step with key activities listed below, with arrows indicating the chronological flow from pediatric to adult care systems.</image>
<image>A split-panel medical illustration comparing a pediatric clinic environment on the left (child-friendly decor, parent present at bedside, pediatrician interacting warmly) and an adult medicine clinic on the right (more clinical setting, patient alone, multiple specialists). In the center, a young adult stands at a crossroads, representing the transition period with supportive bridge elements connecting both sides.</image>
<image>A bar graph illustration showing the "mortality gap" or adverse outcome spike during the transition period (ages 16-25) for several chronic diseases including sickle cell disease, congenital heart disease, and type 1 diabetes. The x-axis shows age and the y-axis shows relative risk, with a highlighted danger zone during the transition years.</image>
Clinical Pearls
Starting transition discussions early, by age 12 to 14, is one of the most impactful steps a provider can take, even though the actual transfer may not happen for years. The Got Transition Six Core Elements model is the most widely endorsed framework in the United States and provides a practical scaffold for any practice. A portable medical summary is among the most valuable transition tools, and every complex patient should have one. Insurance disruption is the single most common barrier to successful transition, so anticipating and planning for it is essential. Med-Peds physicians can serve as both the "sending" and "receiving" provider, making them ideal transition champions. Clinicians should always assess for intellectual disability and mental health comorbidities, as these complicate transition readiness. A warm handoff, meaning direct communication between pediatric and adult providers, significantly outperforms a "cold" transfer of records. Finally, readiness is not the same as age: a 22-year-old may be less prepared than a 17-year-old.
References
- American Academy of Pediatrics, American Academy of Family Physicians, American College of Physicians. Clinical report: supporting the health care transition from adolescence to adulthood in the medical home. Pediatrics. 2011;128(1):182-200.
- Got Transition / Center for Health Care Transition Improvement. Six Core Elements of Health Care Transition. www.gottransition.org
- White PH, Cooley WC. Supporting the health care transition from adolescence to adulthood in the medical home. Pediatrics. 2018;142(5):e20182587.
- Gabriel P, McManus M, Rogers K, White P. Outcome evidence for structured pediatric to adult health care transition interventions: a systematic review. J Pediatr. 2017;188:263-269.
- Cochrane Review: Campbell F, et al. Transition of care for adolescents from paediatric services to adult health services. Cochrane Database Syst Rev. 2016;4:CD009794.
