Table 1

Databases linked in the Opioid Agonist Treatment and Safety Study

Database nameDatabase descriptionLinked variables*
Electronic Reporting and Recording of Controlled DrugsAuthorisation for dispensing methadone or buprenorphine for the treatment of opioid dependence.Dates of OAT entry and cessation.
Primary opioid of concern.
Start and final dose.
Prescriber identification number.
Dosing point.
Date of provider accreditation.
Date of provider’s first OAT authority.
Statistical area of OAT recipient’s address.
Statistical area of OAT provider’s practice.
Reason for OAT cessation.
Admitted Patients Data CollectionAll hospitalisations in all public, private, psychiatric and repatriation hospitals in NSW.Dates of admission and separation.
Planned or unplanned admission.
Diagnoses (underlying and contributing).
Procedures.
Mode of separation.
Emergency Department Data CollectionPresentations to emergency departments in NSW.Date of presentation and separation.
Triage category.
Diagnosis (underlying only).
Planned or unplanned presentation.
Mode of separation.
Mental Health Ambulatory Data CollectionMental healthcare for non-admitted patients, including day programmes, psychiatric outpatients and outreach services.Mental health diagnoses (primary and additional).
Re-offending DatabaseCourt appearances, juvenile detention and adult incarceration in NSW.Dates of prison reception and release.
Level of Service Inventory-Revised risk category.
Registry of Births, Deaths and Marriages and Cause of Death Unit Record FileDeaths registered in NSW.Date of death.
Cause of death (underlying and contributing).
  • *All linked databases include sex, month and year of birth, and Indigenous status.

  • NSW, New South Wales; OAT, opioid agonist treatment.