Attention Deficit Hyperactivity Disorder (ADHD)
Conditions
Brief summary
The main aim of the study is to learn about the demographic and clinical characteristics, healthcare resources utilization (HCRU) and costs associated with before and after ADHD diagnosis in England. No study medicines will be provided to participants in this study. The record available in Clinical Practice Research Datalink (CPRD) database and Hospital Episode Statistics (HES) database for ADHD participants will be assessed.
Interventions
OTHERNo intervention
This is a non-interventional study.
Sponsors
Takeda
Study design
Observational model
COHORT
Time perspective
RETROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
1. Age greater than or equal to (\>=) 18 years at the beginning of the patient observation period (that is 18-months prior to the adult ADHD diagnosis to ensure they would have been seen in adult health care services). 2. First record of an adult ADHD diagnosis between 01st January 2016 and 30th June 2018. 3. Data availability in the database at least during the 18-months before and after the index date.
Exclusion criteria
A participant will be excluded from the study if their CPRD linked to HES electronic medical record data includes: 1. Incomplete information for key demographics (that is, missing age or sex). 2. Clinical history of a diagnosis of ADHD during childhood or adolescence. 3. Prescription of a licensed adult ADHD medication (that is, methylphenidate, lisdexamfetamine, dexamfetamine, atomoxetine) during the pre-index period.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Number of General Practitioner (GP) Appointments | Up to approximately 36 months | Number of GP appointments will be reported. |
| Number of Referrals to Psychiatrist | Up to approximately 36 months | Number of referrals to psychiatrist will be reported. |
| Number of Referrals by Specialist | Up to approximately 36 months | Number of referrals by specialist will be reported. |
| Number of Outpatient Visits by Specialist | Up to approximately 36 months | Number of outpatient visits by specialist will be reported. |
| Number of Investigations Undergone | Up to approximately 36 months | Number and type of investigations undergone will be reported. |
| Number of Accident and Emergency Visits | Up to approximately 36 months | Number of accident and emergency visits will be reported. |
| Number of Reasons for Admission | Up to approximately 36 months | Number of reasons for admission will be reported. |
| Number of Inpatient Hospitalizations | Up to approximately 36 months | Number of inpatient hospitalizations will be reported. |
| Length of Stay in Hospital | Up to approximately 36 months | Length of stay in hospital will be reported. |
| Total Healthcare Costs | Up to approximately 36 months | Health care cost includes prescription costs, primary health care consultations, investigations, hospital admissions, and outpatient appointments. |
| Number of Participants Prescribed With Pharmacological Treatments | Up to approximately 36 months | Number of participants prescribed with pharmacological treatment will be reported. |
| Number of Participants Received Non-Pharmacological Treatments | Up to approximately 36 months | The number of participants who received non-pharmacological treatments will be reported. |
| Number of Participants Received Non-Pharmacological Therapy | Up to approximately 36 months | The non-pharmacological therapy will be cognitive behavioural therapy. Number of participants who received non-pharmacological therapy will be reported. |
Countries
United Kingdom
Outcome results
None listed