Availability of timely methadone treatment in the United States and Canada during COVID-19: A census tract-level analysis.

Objectives: We sought to compare timely access to methadone treatment in the United States (US) and Canada during the COVID-19 pandemic.

Methods: We conducted a cross-sectional study of census tracts and aggregated dissemination areas (used for rural Canada) within 14 US and 3 Canadian jurisdictions in 2020. We excluded census tracts or areas with a population density of less than one person per square km.