Table 2 Parent and adolescent self-report measurement tools and questions at each time point

Demographics

Adolescent characteristics

Age, gender, postcode, family Characteristics, living arrangements, education, age at diagnosis, family history of diabetes, diabetes treatment regime, number of hospitalizations, general medical history (Other Acute or chronic health conditions)

Parent characteristics

Age, gender, postcode, education, marital status, and employment

Process evaluation

Satisfaction with intervention^

6 item assessment rating the intervention with 4 additional open-ended questions regarding most liked, least liked, suggestions on improvements, and other comments

Primary outcome

Adolescent

Mental health

Children's depression inventory -short form (CDI -S) [58]

Revised children's manifest anxiety Scale (RCMAS -S) [59]

Secondary outcomes

Adolescent

Behavioral

Self-care inventory (SCI-R) [60]

Adolescent risk taking questionnaire (ASQ) [61]

Psychosocial

Diabetes quality of life survey for youths (DQoLY-S) [62]

Child health questionnaire: parent form 50 (CHQ-PF50) [63]

Stanford diabetes self-efficacy scale (SDSES) [64]

Benefit burden scale for children (BBSC) [65]

Adolescent resilience scale (ARS) [66]

Metabolic

HbA1c

Parent

Psychosocial

Depression, anxiety & stress scale (DASS) [67]

Fatigue assessment scale (FAS) [68]

Parent sense of competence scale (PSoC) [69]

Parent experience of child illness (PECI) [70]

Family

Communication

Family problem solving communication index (FPSCI)* [71]

Family management measure (FaMM) [72]

Reduced conflict

Diabetes family conflict scale (DFCS)* [73]

Diabetes responsibility

Diabetes family responsibility questionnaire (DFRQ)* [74]

Mediators and moderators

Perceived social support

Adolescent satisfaction with support from parents, boyfriend/girlfriend, friends, teachers, employers, diabetes specialists

Other activities

Engagement in employment and extra-curricular activities.