The TRANSITION-Q is a 14-item transition readiness/self-management ability scale. This short, clinically meaningful and psychometrically sound scale can be used in research and in pediatric and adolescent clinics to help evaluate readiness for transition to adult care. Item responses ("never" = 0, "sometimes" = 1, and "always" = 2) are summed to create a raw score, with a possible range from 0 to 28. Raw scores are transformed using a table provided by the developers and the transformed scores range from 0-100. A higher score indicates greater transition readiness; exhibiting more self-management skills with higher frequency.

The Pediatric Quality of Life Instrument (PedsQL[TM]) takes a modular approach to measuring health-related quality of life (HRQOL) in healthy children and adolescents and those with acute and chronic health conditions. In this study the PedsQL[TM] Pediatric Quality of Life Instrument, Generic Core, Teen Report (13-18 years) was completed. The form is brief (23 items), practical (less than 4 minutes to complete), multidimensional (Physical, Emotional, Social, School Functioning), reliable (Child Self-Report; 0.90) and valid (Distinguishes between healthy children and children with acute and chronic health conditions; distinguishes disease severity within a chronic health condition), and responsive to clinical change over time. Overall Score reported in table, on a 0-100 scale, with higher scores indicating better Health-Related Quality of Life (HRQOL).

The Measure of Processes of Care (MPOC) is a well-validated and reliable self-report measure of parents' perceptions of the extent to which the health services they and their children receive are family-centred. The original version of MPOC is a 56-item questionnaire; as of 1999 there is a shorter, 20-item version called MPOC-20 which was used (and modified with permission) in this study. Five MPOC-20 scale scores are reported: Enabling and Partnership, Providing General Information, Providing Specific Information, Coordination and Comprehensive Care, Respectful and Supportive Care. A 7-point scale is used, ranging from 7 "to a very great extent", 6 = "to a great extent", 5 = "to a fairly great extent", 4 = "to a moderate extent", 3 = "to a small extent", 2 = "to a very small extent", and 1 = "not at all". A score of 0 indicates "not applicable". Higher MPOC-20 scale scores indicate better family-centred care.

The HUI is a generic health status instrument developed in Canada for use with children and has been incorporated in numerous clinical studies as well as the Canadian Community Health Survey, allowing the generation of norms for most age groups. The HUI Mark II includes 7 attributes: Sensation, Mobility, Emotion, Cognition, Self-care, Pain and Fertility with each attribute divided into 3 to 5 levels. The HUI III includes 8 attributes: Vision, Hearing, Speech, Ambulation, Dexterity, Emotion, Cognition and Pain. Each attribute of the HUI III consists of 5 to 6 levels. We report the overall health rating at Baseline and 6-Month Visit measured on a scale from 1 (Poor) to 5 (Excellent)

The RUQ is typically an interviewer-administered questionnaire for parents of children aged 11 to 18 years. The original RUQ measures the family resource use of condition-related treatments, services and programs, as well as parent time losses and family out-of-pocket costs. It also documents condition-related government subsidies and funding that families receive. Resources measured include those delivered by a parent, by other providers (e.g. behavioural specialist) or a combination of both. In this project, we will use a modified subset of RUQ questions, self-completed by the parent/caregiver. We report information collected at the 6-Month Visit about the number of participants in each arm who reported any hospitalizations during the study.

The SUS will be administered to youth in the Experimental Arm. The measure focus is on users' utilization of the application and its features, the perceived value and their experience and satisfaction with the intervention. The self-reported survey will provide additional information about the users' adherence, behavior, motivation and experience with the IT platform, as well as about the main reasons for using or not using it. Measures youth's subjective perceptions of the usability of the App, scored from 0 - 100 with a higher score indicating greater usability.

Participants in the no intervention Control group continue to get the same care they have been getting (their usual care). The researchers aim to supply the App to participants in both the intervention and control group for a limited time after participation in the study.

Total of all reporting groups

race/ethnicity missing for 2 participants in control group

Participants in the no intervention Control group continue to get the same care they have been getting (their usual care). The researchers aim to supply the App to participants in both the intervention and control group for a limited time after participation in the study.

The Canadian Occupational Performance Measure (COPM) is an evidence-based, generic, and individualized outcome measure used to capture a client's self-perception of performance and satisfaction in everyday living over time, by identifying problems in performing activities of daily living. Participants are encouraged to think about things (goals) that they want to do, need to do or are expected to do but can't do, don't do or aren't satisfied with the way they do. Participants are asked to rate current performance using a 10-point scale ranging from 1'not able to do it' to 10 'able to do it very well'. Higher performance scores indicate better perceived performance of the goal. Participants are also asked to rate satisfaction with performance on a 10-point scale ranging from 1 'not satisfied at all' to 10 'extremely satisfied'. Higher satisfaction scores indicate better perceived satisfaction with their performance of the goal.

The TRANSITION-Q is a 14-item transition readiness/self-management ability scale. This short, clinically meaningful and psychometrically sound scale can be used in research and in pediatric and adolescent clinics to help evaluate readiness for transition to adult care. Item responses ("never" = 0, "sometimes" = 1, and "always" = 2) are summed to create a raw score, with a possible range from 0 to 28. Raw scores are transformed using a table provided by the developers and the transformed scores range from 0-100. A higher score indicates greater transition readiness; exhibiting more self-management skills with higher frequency.

The Pediatric Quality of Life Instrument (PedsQL[TM]) takes a modular approach to measuring health-related quality of life (HRQOL) in healthy children and adolescents and those with acute and chronic health conditions. In this study the PedsQL[TM] Pediatric Quality of Life Instrument, Generic Core, Teen Report (13-18 years) was completed. The form is brief (23 items), practical (less than 4 minutes to complete), multidimensional (Physical, Emotional, Social, School Functioning), reliable (Child Self-Report; 0.90) and valid (Distinguishes between healthy children and children with acute and chronic health conditions; distinguishes disease severity within a chronic health condition), and responsive to clinical change over time. Overall Score reported in table, on a 0-100 scale, with higher scores indicating better Health-Related Quality of Life (HRQOL).

The Measure of Processes of Care (MPOC) is a well-validated and reliable self-report measure of parents' perceptions of the extent to which the health services they and their children receive are family-centred. The original version of MPOC is a 56-item questionnaire; as of 1999 there is a shorter, 20-item version called MPOC-20 which was used (and modified with permission) in this study. Five MPOC-20 scale scores are reported: Enabling and Partnership, Providing General Information, Providing Specific Information, Coordination and Comprehensive Care, Respectful and Supportive Care. A 7-point scale is used, ranging from 7 "to a very great extent", 6 = "to a great extent", 5 = "to a fairly great extent", 4 = "to a moderate extent", 3 = "to a small extent", 2 = "to a very small extent", and 1 = "not at all". A score of 0 indicates "not applicable". Higher MPOC-20 scale scores indicate better family-centred care.

The HUI is a generic health status instrument developed in Canada for use with children and has been incorporated in numerous clinical studies as well as the Canadian Community Health Survey, allowing the generation of norms for most age groups. The HUI Mark II includes 7 attributes: Sensation, Mobility, Emotion, Cognition, Self-care, Pain and Fertility with each attribute divided into 3 to 5 levels. The HUI III includes 8 attributes: Vision, Hearing, Speech, Ambulation, Dexterity, Emotion, Cognition and Pain. Each attribute of the HUI III consists of 5 to 6 levels. We report the overall health rating at Baseline and 6-Month Visit measured on a scale from 1 (Poor) to 5 (Excellent)

1. overall health rating missing at both Baseline and 6-Month Visit in Control Group: Usual Care Arm.
2. overall health ratings missing at 6-Month visit in Usual Care + MyREADYTransition[TM] BBD App Arm.

The RUQ is typically an interviewer-administered questionnaire for parents of children aged 11 to 18 years. The original RUQ measures the family resource use of condition-related treatments, services and programs, as well as parent time losses and family out-of-pocket costs. It also documents condition-related government subsidies and funding that families receive. Resources measured include those delivered by a parent, by other providers (e.g. behavioural specialist) or a combination of both. In this project, we will use a modified subset of RUQ questions, self-completed by the parent/caregiver. We report information collected at the 6-Month Visit about the number of participants in each arm who reported any hospitalizations during the study.

The SUS will be administered to youth in the Experimental Arm. The measure focus is on users' utilization of the application and its features, the perceived value and their experience and satisfaction with the intervention. The self-reported survey will provide additional information about the users' adherence, behavior, motivation and experience with the IT platform, as well as about the main reasons for using or not using it. Measures youth's subjective perceptions of the usability of the App, scored from 0 - 100 with a higher score indicating greater usability.

Mixed methods will be used to assess MyREADY Transition[TM] BBD App usage, adherence and fidelity, and to identify the barriers and facilitators to using the e-health application for users. Quantitative data will be collected through participant self-report and by the app daily through study completion. For a subset of participants in the intervention group, qualitative data will be collected via interview. Utilization of Intervention reporting at 6-Month Visit.

Usage reported here as the average number of times intervention participants logged into the App.

Average number of times intervention group participants logged into the App intervention. Indicates App intervention access or engagement. Higher scores indicate better engagement.

Participants in the no intervention Control group continue to get the same care they have been getting (their usual care). The researchers aim to supply the App to participants in both the intervention and control group for a limited time after participation in the study.