Fig 1.
Flowchart illustrating the number of unique adolescents in each of the sub-cohort steps (tertiary hospital-based).
The left-hand side describes the distribution of adolescents in each step. The right-hand side of the figure is included to acknowledge the fact that not all adolescents in the cohort reached age 16-17 years during the study period.
Fig 2.
Distribution of adolescents, 16- to 17-year-old, with outpatient visits relevant to comprehensive transitional care across tertiary hospitals.
No decrease in the number of adolescents was observed during the COVID-19 pandemic from 2020 to 2021. Note that adolescents may be associated with multiple hospitals, so the totals do not sum across hospitals. Diagnoses with surgical transition needs are indicated separately in the supporting materials.
Table 1.
Distribution of unique adolescents per hospital, 16- to 17-year-old, categorized by disease complexity (A–D).
Fig 3.
Representation of unique adolescents in each sub-cohort step 1-4 by hospital.
The overall is visualized in the left-hand side of Fig 1. Note that it was possible for an adolescent to meet the inclusion criteria for more than one hospital, and thus the numbers do not amount to the overall total. The sub-cohort steps are defined as: Step 1 includes adolescents aged 12-17 years with one outpatient visit at a tertiary Danish hospital (2019-2022); Step 2 includes those with at least one outpatient visit related to a diagnosis associated with an expected need for comprehensive transitional care; Step 3 includes those with at least two outpatient visits related to a diagnosis associated with an expected need for comprehensive transitional care; and Step 4 includes those with two outpatient visits related to a diagnosis associated with an expected need for comprehensive transitional care, with at least one visit occurring between the ages of 16-17.