Patient access to opioid substitution treatment pharmacy and medical service providers in South Australia: geospatial mapping.

This cross-sectional study geospatially maps patient access to opioid substitution treatment (OST) pharmacy and medical providers in South Australia (SA), Australia. De-identified data from a total of 2935 public and private OST patients (1092 public cases and 1843 private cases) were included in the study. Geospatial mapping of OST patient locations, their dosing community pharmacy and prescriber was undertaken. The geospatial modelling methods used in this study presents an application whereby information about patient travel patterns to reach OST providers can be used as a tool for treatment service planning.