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Table 2 Measures of risk and protective factors

From: A longitudinal study of risk and protective factors associated with successful transition to secondary school in youth with ADHD: prospective cohort study protocol

Secondary outcomes Measure description Time point
Baseline MU study
Child Risk Factors   
 Quality of Life Pediatric Quality of Life Inventory 4.0 - 23-item validated measure for children aged 2 to 18 years. Provides total, physical, and psychosocial health summary scores, with higher scores indicating better health-related quality of life [69]. P _
 Sleep problem severity Primary caregiver report of child sleep problems (none, mild, moderate or severe) [70]. P P
 Difficulties withinitiating andmaintaining sleep Sleep Disturbance Scale for Children (SDSC) –7-item subscale assessing disorders of initiating and maintaining sleep [71]. _ P
 Sleep habits Self-reported sleep habits – 2-items from the Longitudinal Study of Australian children about the amount and quality of sleep [72]. _ C
 Comorbid Mental Health Problems Anxiety Disorders Interview Schedule for DSM-IV - diagnostic interview assessing mental health disorders according to DSM-IV criteria [73]. P _
 Other Comorbidities Learning difficulties or Autism Spectrum Disorder – parent-report of whether these conditions have been diagnosed by health professional. P P
 Cognitive Functioning Wechsler Abbreviated Scale of Intelligence™ (WASI™) – Provides an estimated general intellectual ability, based on two subsets, Vocabulary and Matrix Reasoning [74]. _ C
 Working Memory Wechsler Intelligence Scale for Children – Fourth Edition (WISC-IV) - Digit Span Forwards and Backwards subscale assessing short-term auditory memory [75]. _ C
 Affective Reactivity Index (ARI) Affective Reactivity Index (ARI) – 7-item measure of chronic irritability [76]. _ P,C
 Substance Use Substance Use – 6-items assessing alcohol, smoking and cannabis use ever and use in last 12 months. Questions previously used in the Victorian Adolescent Health and Wellbeing Survey [77]. _ C
 Puberty Puberty Scale – Self-rating scale of pubertal development from pre-pubertal through to post-pubertal (5 mins) [78]. _ C
Parent, Family and School Risk Factors   
 Mental Health Depression Anxiety Stress Scale - 21-item measure of adult mental health with clinical cut points for each of the three subscales of depression, anxiety and stress [79]. P P
 Family Functioning Family Environment Scale – 9-items scale measuring family function/dysfunction [80]. P _
 School Environment My School Variables – sector, type, year range, location and index of socio-educational advantage (SEA), [62]. _ D
  1. C Child, P Parent, T Teacher, D Data Linkage