Diagnosis of ADHD Mental and Behavioural Disorders
Conditions
Interventions
The study is a longitudinal cohort study, where the aim is to answer questions about the effects of ADHD diagnosis on long-term outcomes by studying patients that receive diagnosis due to provider pre
Sponsors
Haukeland University Hospital
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: The patient sample is all persons in Norway between 5 and 18 years of age that were in contact with child and adolescent psychiatric outpatient clinics in 2009-2011 (i.e. birth cohorts 1991-2006). We will also include a control sample that is a random sample from the general population of equal size to the patient sample. The control sample is defined as individuals in Norway between 5-18 years not in contact with child and adolescent psychiatric outpatient clinics (regardless of reason) during the calendar years 2009-2011. We have four different sample definitions: 1. All patients diagnosed with ADHD in 2009-2011, regardless of referral reason. 2. All patients referred to child and adolescent outpatient clinics from GP’s with suspicion of ADHD in 2009-2011, regardless of whether the patient was diagnosed with ADHD. 3. All patients in contact with child and adolescent outpatient clinics for any reason in 2009-2011, regardless of whether the patient was diagnosed with ADHD. 4. All individuals in child and adolescent outpatient clinics catchment area in 2009-2011
Exclusion criteria
Exclusion criteria: Does not meet inclusion criteria
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| We have nine primary outcomes (point 1a, 3a … to 9b), and one overall primary outcome for the general prognosis, measured at age 21. The primary outcome for general prognosis is the avoidance of all primary adverse outcomes among those as listed below, measured as dichotomy until age 21. The secondary outcome is the number of adverse outcomes among those listed below. The specific primary and secondary outcomes for ADHD diagnosis, measured using patient records, are: 1. Emergency ward visits, measured anytime 1.1. Primary: Emergency ward visit for severe injury 1.2. Secondary: Any contact with emergency department. Analyses for type of and severity of injury. Measured for anytime. 2. Child welfare and protection services (Barnevernet), measured at any time during the period where services are available by law. 2.1. Primary: Any intervention from the child welfare and protection services (in Norwegian: Barnevernet) 2.2. Secondary: Type of contact, type of interventions (voluntary or involuntary), specifically for parental guideline and foster care. 3. Contact with adult psychiatric health services anytime from the age of 18 3.1. Primary: Any contact 3.2. Secondary: Type of contact 4. Onset of other mental disorder, measured anytime during follow-up 4.1. Primary: Onset of other mental disorders > 2 years after initial contact with public sector child and adolescent psychiatric outpatient clinic in 2009-2011 4.2. Secondary analyses for types of diagnosis 5. Educational attainment, measures to be included at age-appropriate time-points. 5.1. Primary: Non-completion of high-school, 5 years after planned start of high-school. 5.2. Secondary outcomes for average grades level at primary school, enrollment to high-school, delayed high-school completion, non-completion of high school, grades from high-school at completion, enrollment into higher education after high-school, dropout from higher education. 6. Welfare dependency measured at age-appropriate time-points. 6 | — |
Secondary
| Measure | Time frame |
|---|---|
| As specified above | — |
Countries
Norway
Outcome results
None listed